Sudden sweating on the soles of the feet can be caused by normal secretion of sweat glands, vegetative nerve dysfunction, endocrine disorders and so on. 1. Normal secretion of sweat glands: In order to maintain normal body temperature under strenuous exercise, the sweat glands will stabilize the temperature by secretion of sweat, which is a normal physiological state, so there is no need for special treatment. 2. Phytoneurological disorders: emotional tension or other reasons may cause phytoneurological disorders, which may make the sympathetic nerves excited and their innervated sweat glands will function abnormally, the clinical manifestation is increased sweat secretion. 3. Endocrine disorders: clinically common such diseases are hyperthyroidism, diabetes mellitus, adrenocortical function abnormalities, etc., foot control sweat gland secretion of the nerves abnormal and make the sweat gland secretion is not stable, suffering from such diseases of the crowd of the soles of the feet are more prone to sweating. If you suspect that the symptoms are caused by disease factors, it is recommended to go to the hospital to do a test to make a clear diagnosis, and follow the doctor’s instructions for targeted treatment.