Hyperhidrosis: Causes, Symptoms, and Effective Treatments Written by Christian NordqvistReviewed by University of Illinois-Chicago, School of Medicine Hyperhidrosis, also known as polyhidrosis or sudorrhea, is a condition characterized by excessive sweating. The sweating can affect just one specific area or the whole body. Although not life-threatening, it can be uncomfortable and cause embarrassment and psychologicalContinue reading “Excessive sweating and Parkinsons”