Search over 153+ verified medical terms. Clear layman definitions, clinical explanations, frequency ratings (⭐⭐⭐ Very Common), pronunciations, and body system tags.
A medicine used to relieve or reduce pain (e.g. Paracetamol, Ibuprofen).
Analgesics act on peripheral or central nervous systems to relieve pain without causing loss of consciousness.
Pain felt in the belly or abdominal cavity.
Discomfort occurring between the chest and pelvic region, originating from organs such as the stomach, intestines, liver, or gallbladder.
Enlargement or noticeable swelling of the abdomen.
Physical expansion of the abdominal cavity due to trapped intestinal gas, fluid accumulation (ascites), or tissue swelling.
Sudden in onset or usually short-term.
Refers to a disease or symptom that develops rapidly and requires prompt evaluation, as opposed to chronic conditions.
A condition involving low red blood cells or hemoglobin levels.
Reduced oxygen-carrying capacity of blood caused by iron deficiency, vitamin B12 loss, or blood loss, causing fatigue and pallor.
Excessive worry, fear, or nervousness.
A psychological and physiological state characterized by persistent apprehension, somatic tension, and autonomic arousal.
Desire to eat food.
The physiological and psychological drive to consume food, regulated by the hypothalamus and gastrointestinal hormones.
Abnormal or irregular heart rhythm.
Disruption in the electrical conduction system of the heart, causing beat rates that are too fast (tachycardia), too slow (bradycardia), or irregular.
Buildup of fluid inside the abdominal cavity.
Accumulation of serous fluid within the peritoneal cavity, most commonly caused by hepatic portal hypertension and liver cirrhosis.
Poor voluntary muscle coordination or balance.
Neurological sign consisting of lack of voluntary coordination of muscle movements, often due to cerebellar lesions or sensory loss.
Wasting or shrinking of body tissue or muscle.
Decrease in size or cell mass of a tissue or organ due to disuse, aging, malnourishment, or denervation.
Loss of the sense of taste.
Absence of taste perception, often associated with olfactory nerve dysfunction or medication side effects.
Severe, life-threatening allergic reaction.
Rapid-onset systemic IgE-mediated allergic hypersensitivity reaction causing airway edema, bronchospasm, and circulatory collapse.
Loss of the sense of smell.
Inability to perceive odors, commonly caused by nasal inflammation, viral upper respiratory infections, or head trauma.
Temporary cessation of breathing.
Transient pause in respiration lasting longer than 10 seconds, frequently seen during sleep (obstructive sleep apnea).
Difficulty understanding or producing language.
Impairment of language processing following stroke or brain injury affecting Broca's or Wernicke's speech areas.
Loss of the ability to produce vocal sound.
Inability to speak due to vocal cord pathology, severe laryngitis, or laryngeal nerve impairment.
Pain or soreness affecting the spine or back muscles.
Discomfort originating from spinal vertebrae, intervertebral discs, ligaments, or paraspinal musculature.
Release of swallowed gas or air from the stomach.
Retrograde expulsion of swallowed air (aerophagia) from the stomach through the esophagus (Eructation).
Not cancerous or harmful.
Refers to a neoplasm or condition that does not metastasize, invade local tissues, or pose a malignant threat.
Affecting both sides of the body.
Anatomical designation indicating symmetry or involvement of both left and right paired structures (e.g. bilateral lung crackles).
Yellow pigment from broken down red blood cells.
Heme degradation product processed by the liver; elevated serum levels cause scleral icterus and cutaneous jaundice.
Temporary skin whitening when pressed.
Transitory paleness produced by local capillary compression, used clinically to assess capillary refill time and rash types.
Fluid-filled pocket under the top skin layer.
Vesicle or bulla containing serum, plasma, or pus formed between skin epidermal layers in response to friction or burn.
Uncomfortable fullness or swelling in the belly.
Subjective feeling of abdominal tightness often associated with intestinal gas accumulation or delayed gastric emptying.
Reduced visual sharpness or clarity.
Decrease in visual acuity preventing clear focus, caused by refractive errors, cataracts, glaucoma, or retinopathy.
Pain felt inside or originating from bones.
Deep, aching skeletal pain caused by trauma, osteomyelitis, bone density loss, or metastatic lesions.
Rumbling sounds produced by intestinal movement.
Audible gurgling or splashing sounds caused by passage of gas and liquid through intestinal lumen during peristalsis.
Skin discoloration caused by micro-bleeding under skin.
Contusion resulting from blunt force extravasation of red blood cells into subcutaneous tissue.
Feeling cold, often accompanied by shivering.
Involuntary muscle contractions generating heat in response to pyrogen-induced hypothalamic temperature set-point elevation.
Persistent or long-lasting medical condition.
Illness persisting for longer than 3 months, requiring ongoing medical management (e.g. Hypertension, Diabetes).
Pain or discomfort in the chest area.
High-acuity clinical symptom originating from cardiac ischemia, pericarditis, aortic dissection, pulmonary embolism, or esophageal spasm.
Feeling of pressure or constriction across the chest.
Sensation of heaviness associated with bronchospasm in asthma, acute myocardial ischemia, or panic anxiety attacks.
Irreversible scarring of liver tissue.
End-stage liver disease characterized by fibrous septa surrounding regenerative hepatic nodules, causing portal hypertension.
Cool, moist, and sweaty skin.
Physical finding indicating sympathetic vasoconstriction and diaphoresis, seen in cardiogenic shock, hypoglycemia, or severe pain.
Sudden loss of physical strength or consciousness.
Abrupt postural breakdown resulting from acute syncope, severe cardiac arrhythmia, or vasovagal episode.
Severe pain that comes and goes in rhythmic waves.
Paroxysmal cramping pain caused by smooth muscle spasm in hollow viscera attempting to bypass an obstruction (e.g. ureteral or biliary colic).
Difficulty thinking clearly or understanding.
Impaired cognitive processing characterized by disorientation, poor memory recall, and inability to maintain coherent thought.
Present at or before birth.
Medical trait, anomaly, or disorder existing at birth due to genetic or intrauterine factors.
Blockage or fullness caused by mucus or swollen blood vessels.
Hyperemia and excessive fluid secretion in mucosal membranes of upper or lower respiratory tracts.
Infrequent or difficult bowel movements.
Gastrointestinal symptom characterized by fewer than 3 bowel movements per week, hard dry stools, and straining.
Involuntary violent muscle shaking or contractions.
Paroxysmal motor manifestation of abnormal excessive synchronous cerebral cortical electrical discharges during seizures.
Forceful expulsion of air from the lungs.
Protective reflex clearing respiratory airways of secretions, irritants, foreign particles, and microbes.
Bluish discoloration of skin or lips.
Clinical sign indicating dark desaturated hemoglobin (> 5 g/dL) in cutaneous blood capillaries due to severe hypoxia.
Too little fluid or water in the body.
Negative fluid balance leading to cellular extracellular volume depletion, hypernatremia, reduced skin turgor, and dry mucous membranes.
Sudden, acute disturbance in attention and awareness.
Fluctuating organic mental syndrome involving acute cognitive dysfunction, sleep-wake cycle alteration, and visual hallucinations.
Medical term for excessive, unprovoked sweating.
Profuse sweating triggered by sympathetic nervous system stimulation, associated with acute MI, severe pain, or hypoglycemia.
Frequent loose or watery bowel movements.
Passage of 3 or more loose or watery stools daily, caused by gastroenteritis, secretory toxins, or malabsorption.
Medical term for double vision.
Perception of a single object as two images, resulting from extraocular muscle imbalance, cranial nerve palsies, or corneal opacity.
Difficulty knowing time, place, or personal identity.
Impairment in cognitive orientation regarding time, space, or person, indicative of acute encephalopathy or delirium.
Feeling unsteady, lightheaded, or faint.
Nonspecific sensation of impaired spatial orientation, faintness, or presyncope.
Unusual sleepiness or inclination to sleep.
State of somnolence or impaired wakefulness due to sedative medications, sleep deprivation, or central metabolic disorders.
Medical term for difficult or uncomfortable breathing.
Subjective experience of breathing discomfort consisting of qualitatively distinct sensations of air hunger and chest tightness.
Swelling caused by excess fluid in body tissues.
Palpable swelling produced by expansion of interstitial fluid volume in dependent limbs or sacral areas (Pitting vs Non-pitting edema).
Medical term for skin redness.
Redness of the skin resulting from hyperemic vasodilation of superficial capillaries during inflammation or skin injury.
State of extreme physical or mental tiredness.
Profound physical depletion resulting from severe systemic illness, prolonged physical overexertion, or heat strain.
Medical term for a large area of bruising under skin.
Subcutaneous purpuric skin hemorrhage > 1 cm in diameter, evolving from blue-black to yellow-green as hemoglobin breaks down.
Unusual tiredness or persistent lack of energy.
Subjective complaint of tiredness, weakness, and exhaustion distinct from normal sleepiness, persisting despite rest.
Higher-than-normal body temperature (≥ 100.4°F / 38°C).
Hypothalamic set-point elevation mediated by pyrogenic cytokines (IL-1, TNF-alpha) in response to infection or inflammation.
Deep, narrow crack or tear in skin or mucous membrane.
Linear ulceration of mucosal membrane, most commonly occurring in the posterior midline of the anal canal.
Sudden redness and warmth of the skin.
Transient erythema of the face, neck, and upper chest resulting from cutaneous vasodilation, emotional stress, or nitrate drugs.
Release of intestinal gas through the anus.
Passage of rectal gas consisting of nitrogen, oxygen, carbon dioxide, hydrogen, and methane produced by colonic bacterial fermentation.
Unusual or unsteady walking pattern.
Deviation from normal biomechanical walking cycle, classified as antalgic, ataxia, spastic steppage, or parkinsonian festinating gait.
Pain felt across many different areas of the body.
Diffuse musculoskeletal pain affecting multiple anatomical quadrants, characteristic of fibromyalgia or systemic viral illness.
Loss of physical strength affecting the whole body.
Global reduction in neuromuscular motor force, requiring distinction between true paresis and systemic asthenia.
Relating to the stomach and intestines.
Pertaining to the organ system responsible for food ingestion, digestion, nutrient absorption, and waste excretion.
Pain or discomfort in the head or upper neck.
Cephalgia arising from pain-sensitive cranial structures (dura, intracranial blood vessels, scalp muscles, or trigeminal nerve).
Burning pain behind the breastbone caused by stomach acid.
Substernal burning sensation caused by gastroesophageal reflux of acidic gastric juice irritating esophageal mucosa.
Number of heartbeats per minute.
Frequency of cardiac ventricular contractions per minute (standard normal adult resting rate: 60–100 BPM).
Coughing up blood or blood-stained mucus.
Expectorated blood originating from the bronchial arteries or pulmonary parenchyma, signaling lung disease or pulmonary embolism.
Swollen, inflamed veins around the anus or rectum.
Vascular cushions in the anal canal that become pathologically engorged, causing painless bleeding or painful thrombosis.
Persistently high blood pressure (≥ 130/80 mmHg).
Chronic elevation of systemic arterial pressure exceeding established clinical guidelines, increasing stroke and heart attack risk.
Abnormally low blood pressure (< 90/60 mmHg).
Subnormal arterial blood pressure resulting in inadequate organ perfusion and symptoms of lightheadedness or presyncope.
Low oxygen levels in body tissues.
Deficiency in oxygen supply reaching tissues despite adequate blood flow, assessed via arterial blood gas or pulse oximetry.
Itchy, raised red or skin-colored welts (Urticaria).
Pruritic erythematous cutaneous plaques caused by localized dermal edema following mast cell histamine release.
Rough, raspy, or weak voice.
Dysphonia caused by irregular vocal cord vibration due to laryngitis, vocal nodules, or recurrent laryngeal nerve palsy.
Discomfort or burning in the upper stomach after eating.
Dyspeptic complex including postprandial fullness, early satiety, epigastric pain, and belching.
Invasion and growth of harmful germs in the body.
Pathological state resulting from invasion, colonization, and tissue injury caused by pathogenic bacteria, viruses, fungi, or parasites.
Body response causing redness, warmth, swelling, and pain.
Vascular and cellular immune cascade delivering leukocytes and plasma proteins to sites of infection or tissue trauma.
Difficulty falling asleep or staying asleep.
Sleep disorder characterized by dissatisfaction with sleep quality or duration despite adequate opportunity for sleep.
Uncomfortable skin sensation creating an urge to scratch.
Pruritus mediated by unmyelinated C-nerve fibers in response to histamine, serotonin, or bile salts.
Discomfort caused by inflammation or physical exposure.
Localized superficial inflammatory tissue reaction caused by mechanical friction, chemical agents, or thermal injury.
Yellowing of the skin and whites of the eyes.
Cutaneous and scleral yellow icterus resulting from elevated plasma total bilirubin levels (> 2.5 mg/dL).
Pain strictly limited to one specific body area.
Nociceptive pain circumscribed to a distinct anatomical site without regional radiation.
Severe lack of energy and reduced alertness.
Pathological drowsiness or apathy characterized by slowness, listlessness, and delayed response to stimuli.
Area of abnormal or damaged tissue.
Generic pathological term denoting any circumscribed area of tissue damage caused by injury, ulceration, or tumor.
Noticeable mass, bump, or swelling under skin.
Palpable localized tissue enlargement requiring diagnostic evaluation to differentiate cyst, lipoma, lymph node, or tumor.
General feeling of being unwell, weak, or sick.
Non-specific systemic symptom of feeling unwell, often heralding the onset of viral or bacterial infection.
Cancerous and capable of invading nearby tissues.
Refers to neoplasms displaying cellular atypia, uncontrolled growth, local tissue invasion, and capacity for distant metastasis.
Abnormal lump or collection of tissue.
Volumetric tissue expansion detected during physical examination or diagnostic CT/MRI radiology.
Recurrent severe headache attacks often with nausea.
Neurovascular headache disorder characterized by unilateral pulsating pain, photophobia, phonophobia, and nausea.
Slippery protective liquid produced by mucous membranes.
Viscous secretion containing mucins, immunoglobulins, and salts lining respiratory and gastrointestinal tracts.
Pain or aching in muscles (Myalgia).
Musculoskeletal discomfort caused by strain, viral infection, electrolyte imbalance, or inflammatory myopathy.
Blocked or stuffy nose.
Swelling of nasal vascular membranes and mucus hypersecretion obstructing upper nasal airway airflow.
Fluid or mucus draining from the nose (Rhinorrhea).
Secretion of watery, mucoid, or purulent fluid from nostrils, seen in rhinitis and sinusitis.
Feeling that you are going to vomit.
Subjective urge to vomit mediated by the chemoreceptor trigger zone (CTZ) and gastrointestinal vagal afferents.
Pain or stiffness in the neck region.
Cervical spine discomfort involving paraspinal muscles, nerve roots, or intervertebral discs.
Pain caused by nerve damage or nerve dysfunction.
Chronic burning, shooting, or electric pain arising from primary lesion or disease of somatosensory nervous system.
Reduced or absent skin sensation.
Loss of cutaneous tactile or pain sensation resulting from peripheral neuropathy or spinal nerve root compression.
Severe, painful swallowing.
Pain experienced during deglutition, commonly caused by esophageal ulceration, candidiasis, or severe pharyngitis.
Difficulty breathing when lying flat.
Dyspnea occurring in recumbent position, relieved by sitting upright, characteristic of left-sided heart failure.
Percentage of hemoglobin carrying oxygen (SpO2).
Vital sign indicating arterial blood oxygen content measured non-invasively by pulse oximetry (normal range: 95–100%).
Unpleasant physical sensation signalling tissue injury.
Complex sensory experience mediated by nociceptors in response to actual or potential tissue damage.
Uncomfortable awareness of one's heartbeat.
Sensation of rapid, thumping, fluttery, or skipped heartbeats reported during arrhythmia or anxiety.
Unusual paleness of the skin.
Paleness of skin and mucosal membranes caused by reduced cutaneous blood flow or low red blood cell count in anemia.
Tingling or "pins and needles" sensation.
Abnormal spontaneous cutaneous sensation occurring without external physical stimulus.
Complete loss of muscle movement.
Loss of voluntary motor function in one or more muscle groups caused by central or peripheral neural lesion.
Partial muscle weakness or incomplete loss of movement.
Slight or partial paralysis characterized by reduced muscle strength rather than complete motor loss.
Tiny pinpoint red spots of bleeding under skin.
Non-blanching subcutaneous hemorrhagic spots < 2 mm caused by capillary fragility or thrombocytopenia.
Inflammation of the throat (sore throat).
Inflammatory infection of pharyngeal mucosa caused by Group A Streptococcus or respiratory viruses.
Unusual sensitivity or intolerance to light.
Ocular discomfort or pain produced by light exposure, seen in corneal abrasions, uveitis, and migraine.
Thick mucus coughed up from airways.
Mucopurulent bronchial secretion expectorated during respiratory tract infections.
Sharp chest pain that worsens with deep breathing.
Sharp stabbing pain resulting from friction between inflamed visceral and parietal pleural layers during respiration.
Small skin lesion containing yellow pus.
Small circumscribed epidermal elevation filled with neutrophils and purulent exudate.
Purple-red skin spots caused by bleeding under skin.
Non-blanching hemorrhagic skin lesions measuring 3–10 mm, resulting from vasculitis or bleeding disorders.
Pain spreading outward from its origin to another area.
Pain traveling along a anatomical dermatome or nerve tract distant from the primary site of tissue injury.
Abnormal change in skin color, appearance, or texture.
Widespread eruption of skin lesions including macules, papules, or vesicles.
Pain felt in a body location away from its actual source.
Nociceptive sensation perceived at a site distant from the affected visceral organ due to shared spinal cord nerve roots.
Happening repeatedly over time.
Medical events or disease episodes that return after periods of clinical remission.
Significant difficulty or struggle to breathe.
High-acuity state of respiratory failure characterized by tachypnea, intercostal retractions, cyanosis, and nasal flaring.
Repeated, involuntary attempts to vomit without expelling contents.
Spasmodic respiratory and abdominal muscle contractions accompanying nausea prior to or following emesis.
Low-pitched abnormal breathing sounds.
Continuous low-pitched gurgling adventitious breath sounds caused by secretions in large airways.
Abnormal involuntary muscle stiffness or hardness.
Hypertonia displaying constant uniform resistance to passive joint stretch (Lead-pipe or Cogwheel rigidity).
Excess fluid or thin mucus coming from nostrils.
Watery nasal discharge resulting from viral inflammation or allergic rhinitis.
Sudden, uncontrolled electrical activity in the brain.
Transient neurological signs resulting from abnormal excessive paroxysmal neuronal discharges in cerebral cortex.
Difficulty or discomfort breathing (Dyspnea).
Subjective feeling of inadequate air intake requiring conscious respiratory effort.
Pain, scratchiness, or irritation in the throat.
Pharyngeal discomfort triggered by viral upper respiratory tract infection or bacterial tonsillitis.
Pain or discomfort, often following activity.
Localized muscular stiffness or tenderness resulting from physical exertion or micro-trauma.
Mucus or phlegm coughed up from lower airways.
Expectorated matter containing bronchial mucus, cellular debris, and microorganisms.
Very sharp, intense, piercing pain.
Paroxysmal lancinating pain characteristic of neuralgia or visceral perforation.
Difficulty moving a joint or muscle normally.
Reduced joint range of motion and tissue resistance, common in morning osteoarthritis.
Harsh, high-pitched breathing sound on inspiration.
High-pitched monophonic sound caused by turbulent airflow through a narrowed extrathoracic upper airway.
Enlargement caused by fluid accumulation or tissue inflammation.
Visible or palpable volume expansion of body tissue caused by edema or localized inflammatory response.
Temporary loss of consciousness (fainting).
Transient loss of consciousness and postural tone with spontaneous recovery, caused by global cerebral hypoperfusion.
Abnormally fast heart rate (> 100 beats/min).
Accelerated cardiac ventricular rate originating from sinus node elevation, supraventricular focus, or ventricular focus.
Abnormally rapid breathing rate.
Elevated respiratory frequency (> 20 breaths/min in adults) compensating for metabolic acidosis or hypoxemia.
Feeling of needing to pass stool despite an empty bowel.
Distressing sensation of incomplete rectal evacuation accompanied by involuntary straining.
Pain or discomfort when an area is touched or pressed.
Objective physical examination finding where manual palpation of tissue elicits pain.
Prickling "pins and needles" sensation.
Abnormal cutaneous paresthesia indicating nerve irritation or transient focal nerve compression.
Hearing ringing or buzzing sounds without external noise.
Auditory perception of ringing, buzzing, or hissing sound in the absence of corresponding external acoustic stimulus.
Involuntary, rhythmic shaking of body parts.
Involuntary oscillatory movement produced by alternating contractions of antagonistic muscle groups.
Open sore caused by skin or tissue breakdown.
Circumscribed loss of cutaneous or mucosal epithelium extending into dermis or submucosa.
Affecting only one side of the body.
Anatomical designation indicating involvement restricted to either the left or right side.
Lack of awareness and responsiveness.
State of profound loss of cognitive awareness and motor reactivity to external sensory stimuli.
Walking with poor balance or coordination.
Irregular, wide-based, or staggering walking pattern caused by vestibular, cerebellar, or sensory nerve deficits.
Medical term for itchy, raised hives.
Vascular reaction of skin characterized by transient erythematous wheals accompanied by pruritus.
False sensation that you or your surroundings are spinning.
Illusion of rotational movement caused by asymmetric dysfunction in peripheral vestibular apparatus or central connections.
Forceful emptying of stomach contents through the mouth.
Coordinated gastrointestinal and respiratory emetic reflex purging stomach contents via oral cavity.
Increased temperature felt in an area.
Physical finding of hyperthermia in cutaneous tissue signaling local vasodilation and inflammation.
Raised, temporary area of itchy skin swelling.
Transient edematous papule or plaque characteristic of urticarial allergic reactions.
High-pitched whistling sound during breathing.
Continuous high-pitched musical adventitious sound generated by subtotal airway obstruction during expiration.
Reduced physical muscular strength.
Decrease in maximum force produced by one or more muscle groups during physical exertion.
Damage or break in body tissue or skin.
Disruption of anatomical integrity of skin or organ tissue caused by mechanical trauma or surgery.
This information is educational only and does not replace professional medical advice.
Important: The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
