There are many reasons for the sudden increase in sweat hair, usually caused by systemic hormone use, topical glucocorticoids, imbalance of hormone secretion in the body or endocrine disorders, in addition to polycystic ovary syndrome may also lead to a sudden increase in sweat hair. Systemic hormone use may cause acne on the face, chest and back, delayed wound healing, swelling lines in the armpits, and hairiness on the extremities; topical glucocorticoids may lead to abnormal secretion of sebaceous glands and increased sweat hair. The endocrine disorders and disturbances can lead to an increase in androgens, which can stimulate hair growth and cause a sudden increase in sweat. Polycystic ovary syndrome itself can lead to different degrees of hirsutism, mainly sexual hair, dense pubic hair with male type tendency, extending to the perianal area, groin or abdominal midline, but also the appearance of upper lip, jaw fine whiskers, or around the areola with long hair. When sweat hair suddenly increases, it is recommended that patients go to the hospital for ultrasound examination of the ovaries and hormone six examination to clarify the cause for symptomatic treatment. You should pay attention to a light diet, less anger, less late nights, regular work and rest, and pay attention to personal hygiene.