Sweating in front of the chest at night is mainly considered to be related to autonomic dysfunction, heat, perimenopausal syndrome or mental illness. 1. Autonomic dysfunction: If there is autonomic dysfunction, it is easy to produce the symptom of night sweating in front of the chest, and even affect the quality of sleep. 2. Heat: If the room is hot or the bedding is thick at night, it is easy to increase the secretion of sweat glands in the chest. 3. Perimenopausal syndrome: for menopausal patients, if the problem of menopausal syndrome occurs, it is easy to produce the phenomenon of excessive sweating before bedtime. 4. Mental illnesses: If there are mental illnesses, such as anxiety disorders, it is easy to affect the nerve function, which will produce the symptom of nighttime sweating in front of the chest. Sweating in front of the chest at night may also be related to other diseases, if the symptoms last for a long time, you need to consult a doctor in time for examination and treatment.