Sweating in the heart and mouth can be caused by many reasons, mainly seen in heart disease, gastrointestinal diseases, developed sweat glands and other reasons. 1. Heart disease: If sweating from the pit of the heart is accompanied by chest pain, panic, chest tightness and other symptoms, it is likely to be caused by coronary heart disease, angina pectoris and other heart diseases. 2. Gastrointestinal diseases: Acute gastroenteritis, gastric ulcer and other stomach diseases may produce severe pain, usually severe pain will lead to sympathetic excitation, which causes sweating in the heart fossa. 3. Developed sweat glands: If the sweat glands in the ventricular fossa are developed, it is easy to lead to excessive secretion of sweat, which will lead to the symptoms of sweating in the ventricular fossa. For example, the male chest follicles sweat glands are more developed, so sweating will be more than normal, especially after strenuous exercise, sweaty state, no other uncomfortable symptoms. If there is a situation of excessive sweating in the heart and mouth, you should go to the hospital in time, with the help of the doctor to clarify the cause of the disease and targeted treatment or therapy.