Whats a condition that causes someone to sweat profusely?

Hyperhidrosis: Hyperhidrosis can either be generalized or localized to specific parts of the body. Hands, feet, armpits, and the groin area are among the most active regions of perspiration due to the relatively high concentration of sweat glands; however, any part of the body may be affected.

Hyperhidrosis: Hyperhidrosis is a dysregulation of the sympathetic nervous system and can affect face, hands, armpits, trunk etc. Thoracoscopic sympathectomy is an effective treatment. Sweating can also be a symptom of other diseases including endocrinopathy, infection such as tuberculosis, even cancer. Therefore, seeing your primary care doc for this is recommended.