A lot of underarm sweating may be considered to be the local sweat gland metabolism is more vigorous, mental stress or some diseases, it is recommended to go to the hospital in time for examination and diagnosis, to avoid misunderstanding aggravate the symptoms. 1. Excessive secretion of sweat glands: sympathetic nerve damage leads to local sweat gland metabolism problems will appear a lot of underarm sweating, if sweat secretion is exuberant, fatty acid decomposition by staphylococcus bacteria will form unsaturated fatty acids, the emergence of a special smell, that is, bad breath. Patients need to pay attention to hygiene and cleanliness, wear cotton loose clothing, can follow the doctor’s instructions through the topical urotropin solution for antiperspirant treatment. 2. Mental tension: high mental tension or too much excitement will cause human schizophrenia, so that the intelligent regulatory sympathetic nerve excitation, resulting in excessive underarm sweating, can be improved by relieving emotions. 3. Disease factors: some disease factors such as thyroid disease or diabetes, etc., can also cause the human body part of the sweaty situation, need to timely treatment of the primary disease to alleviate and improve the symptoms of sweating. Underarm sweating has many factors, it is recommended to go to the hospital in time for examination and diagnosis, as soon as possible to clarify the cause of the active treatment, to avoid delaying the aggravation of the symptoms of the disease.