Causes of Hyperhidrosis of the Hands

Primary palmar hyperhidrosis often begins earlier in life, affects both hands, and occurs while awake without an obvious environmental cause. Nerves that activate sweat glands may signal too strongly; heat, stress, or concentration can amplify the episodes. Secondary sweating starts later or changes from a longstanding pattern and may accompany a medicine, hormonal change, infection, or metabolic or neurological problem.

Sweat can soften the skin and make it easier for irritation, heat rash, intertrigo, or some fungal conditions to develop. The amount, timing, body areas involved, and associated symptoms help a clinician separate these possibilities.

Keep hands dry with absorbent materials, protect irritated skin from repeated washing, and note triggers, timing, medicines, and whether sweating occurs during sleep. A clinician can examine you and review possible causes. Options may include prescription antiperspirant, iontophoresis, injections that reduce nerve signalling to sweat glands, or other treatment selected for your pattern and health history.

Book an assessment when sweating interferes with writing, work, handshakes, device use, or skin care, or when it causes cracking or recurrent irritation. Seek prompt care if sweating begins suddenly, is mainly on one side, occurs during sleep, or comes with chest pain, faintness, fever, breathlessness, weight change, or a racing heartbeat.

Ask whether your pattern is primary or secondary, whether any medicine or symptom needs investigation, which hand treatment fits your routine, and how to protect the skin from moisture-related irritation.