Anhidrosis is a medical condition characterized by the inability to sweat normally. This can lead to overheating, as sweating is a crucial mechanism for regulating body temperature. People with anhidrosis may experience symptoms such as heat intolerance, skin irritation, and increased risk of heat-related illnesses. The condition can be caused by various factors, including genetic disorders, skin damage, or certain medications. It can affect specific areas of the body or be widespread. Treatment often focuses on managing symptoms and preventing overheating, especially during hot weather or physical activity.