What causes excessive hand sweating?

Generally, excessive hand sweating may be caused by factors such as emotional tension and anxiety, high-temperature environments, hyperhidrosis, hypoglycemia, or hyperthyroidism. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analysis is as follows:

1. Emotional Tension and Anxiety

Emotional responses such as nervousness, anxiety, or fear can stimulate the nervous system, leading to increased sweating, especially in the hands. Usually, no special treatment is required. Managing stress and practicing relaxation techniques—such as deep breathing, yoga, and meditation—can help alleviate these emotional triggers.

2. High-Temperature Environment

In hot or humid environments, the body sweats to dissipate heat and maintain thermal balance, which can lead to excessive hand sweating. Moving to a cool, well-ventilated area and maintaining adequate hydration can help reduce the impact of heat on hand sweating.

3. Hyperhidrosis

Hyperhidrosis is a condition caused by abnormal sympathetic nerve function. When the sympathetic nerves malfunction in regulating sweat glands, it results in excessive hand sweating. This condition is often accompanied by symptoms such as cold, moist skin on the hands, peeling, and secondary infections. It is recommended to follow a doctor's advice and use medications such as vitamin B12 tablets, oryzanol tablets, or Acanthopanax senticosus tablets for treatment.

4. Hypoglycemia

Hypoglycemia occurs due to insufficient glucose intake or production, excessive consumption, or over-conversion. Low blood sugar levels stimulate the sympathetic nervous system, increasing sweat gland secretion and causing excessive sweating of the hands. Other accompanying symptoms include dizziness, fatigue, and palpitations. Patients are advised to take medications such as furosemide tablets, hydrochlorothiazide tablets, or acarbose tablets as directed by their physician.

5. Hyperthyroidism

Hyperthyroidism is caused by overactive thyroid function, resulting in excessive secretion of thyroid hormones, which accelerates metabolism throughout the body and leads to the symptoms described above. It is commonly accompanied by palpitations, increased appetite, and weight loss. Patients should take medications such as methimazole tablets, propylthiouracil tablets, or carbimazole tablets under a doctor’s supervision.

In daily life, it is also important to ensure sufficient rest and proper nutritional support, as well as manage emotions effectively, to promote overall physical and mental well-being.