What Causes Excessive Night Sweats in Men?
Sweating is a normal physiological process in the human body; profuse sweating commonly occurs in hot environments or during physical exertion. However, unexplained spontaneous sweating—often referred to as “deficiency sweating” or “night sweats”—is an abnormal condition that warrants attention. It is generally associated with factors such as kidney yin deficiency, endocrine disorders, and improper dietary habits, and timely regulation is recommended. So, what causes spontaneous sweating in men? The following section addresses this question.

Causes of Spontaneous Sweating in Men
1. Kidney Yin Deficiency
Spontaneous sweating—also known as “night sweats”—is a manifestation of kidney yin deficiency. Experiencing excessive sweating even with minimal physical activity may indicate lung qi deficiency. Numerous conditions can trigger spontaneous sweating, with the most common including chronic bronchitis, pulmonary diseases, cardiac insufficiency, and pulmonary tuberculosis. If these conditions remain untreated, spontaneous sweating may persist or worsen. Additionally, male kidney deficiency may also contribute to spontaneous sweating.

2. Psychological Factors
In some men, spontaneous sweating is linked to psychological state. Chronic mental tension or stress often leads to excessive sweating—particularly in work or daily life situations where anxiety or distress triggers abnormal perspiration. If psychological factors are responsible for the sweating, men should prioritize mental and emotional regulation, avoiding excessive tension when facing challenges, as this may adversely affect both professional performance and social interactions.

3. Endocrine Imbalance
Conditions such as hypertension, diabetes, endocarditis, tuberculosis, and hyperthyroidism may all cause nocturnal spontaneous sweating. These diseases stimulate the nervous system, leading to neural dysregulation and subsequent deficiency of yin and blood—thereby triggering night sweats. From the perspective of Traditional Chinese Medicine (TCM), nocturnal sweating in men is primarily attributed to qi deficiency or yin deficiency.
The above outlines the primary causes of spontaneous sweating in men. We hope this information proves helpful.