Anhidrosis is a medical condition characterized by the inability to sweat normally. This can lead to overheating, as sweating is the body's primary way to regulate temperature. People with anhidrosis may experience symptoms such as dry skin and increased body temperature, especially in hot environments or during physical activity. The condition can be caused by various factors, including genetic disorders, skin damage, or certain medications. Anhidrosis can affect any part of the body, but it is most concerning when it impacts areas that typically sweat, such as the face or armpits. Treatment options may include lifestyle changes and managing underlying causes.