Updated April 6, 2021
Hyperhidrosis (HH) is condition where there is excessive sweating. This usually occurs in the head and neck, armpits, groin, gluteal area, palms and soles. Primary Hyperhidrosis (PHH) does not have a known cause while Secondary Hyperhidrosis (SHH) is due to some other condition or treatment, including certain medications. In PHH, sweating does not occur during the night.