Hyperhidrosis is a common condition with socially embarrassing consequences.. The articles in this issue will address epidemiology and mechanisms of hyperhidrosis, patient evaluation, non surgical management of hyperhidrosis including evidence-based reviews, surgical approaches/techniques for the management of hyperhidrosis including Evidence-based reviews, Endoscopic Thoracic Sympathectomy (ETS), side effects and complications of surgery for hyperhidrosis, long-term results and quality of life measures in the management of hyperhidrosis, management of facial blushing.