Clinical Symptom Reference

Symptoms Directory A–Z

Search bodily symptoms, evaluate potential causes, understand red flags, and learn when symptoms require urgent medical care.

Hair loss involves excessive shedding or thinning of scalp or body hair. It encompasses non-scarring forms such as androgenetic alopecia and...

Headache refers to pain or aching originating in the craniofacial structures sensitive to pain (dura mater, intracranial arteries, pericrani...

Palpitations are an uncomfortable awareness of the heartbeat, described as fluttering, pounding, racing, or skipping beats. May be benign or...

Fever (pyrexia) is a controlled elevation of core body temperature above the normal circadian range (>38.0°C or 100.4°F) mediated by hypotha...