What causes night sweats in women during sleep?
Excessive night sweating in women may be caused by factors such as mental stress, calcium deficiency, or diabetes. It is recommended to seek timely medical attention to identify the underlying cause and receive appropriate treatment under the guidance of a professional physician.

1. Mental Stress
If one is overly fatigued from work or experiences prolonged mental stress, it may lead to endocrine dysfunction, resulting in symptoms such as sweating and general weakness. It is advisable to develop healthy lifestyle habits and spend more time on outdoor activities to help relieve stress.
2. Environmental Factors
If the sleeping environment is too hot or the bedding is too thick, the body may sweat to dissipate heat and maintain normal body temperature. Adjust the room temperature to an ideal range of 22°C–25°C, and choose bedding with suitable thickness and good breathability, preferably cotton materials.
3. Calcium Deficiency
Calcium deficiency can impair normal muscle contraction and relaxation, leading to muscle cramps or spasms. Additionally, low calcium levels may affect normal nervous system function, causing overexcitation of the nerves, increased metabolic rate, and consequently excessive sweating. Patients may take calcium supplements such as calcium carbonate D3 tablets or calcium gluconate tablets under medical supervision.
4. Hyperthyroidism
Excessive secretion of thyroid hormones accelerates metabolism and stimulates the sympathetic nervous system, leading to symptoms such as excessive sweating, palpitations, hand tremors, and increased appetite. Under a doctor’s guidance, patients may use medications like methimazole tablets, propylthiouracil tablets, or propranolol tablets to alleviate symptoms.
5. Diabetes
In individuals with diabetes, prolonged high blood sugar levels may damage nerves and disrupt normal sweating mechanisms, causing excessive sweating and dizziness. Patients should follow medical advice and use antidiabetic drugs such as metformin hydrochloride tablets or acarbose tablets for treatment.
During illness, it is important to get adequate rest, maintain sufficient sleep, and avoid overexertion to prevent worsening of symptoms.