A woman’s sweaty armpits may be caused by physiological factors of strenuous exercise, or it may be caused by hyperhidrosis, hyperhidrosis and other diseases. 1. Physiological factors: If a woman is engaged in strenuous exercise, it may trigger excessive sweating in the armpits, which is a normal phenomenon. 2. Hyperhidrosis: its cause may be related to heredity, disease and medication, etc. Temperature changes and emotional fluctuations may also induce the disease. Patients mainly manifested as an abnormal increase in sweating of the whole body or localized, commonly found in the palms of the hands, soles of the feet, armpits and other places. 3. Odorant Sweat Disorder: the cause of the disease may be related to bacterial decomposition, top secretion sweat gland abnormalities, high temperature and other factors, commonly found in the armpits, soles and areolas, etc., there will be a special odor, sweating and other conditions. There are many reasons why women sweat a lot in their armpits, and it is recommended that patients go to regular hospitals for examination to clarify the causes.