What is hyperhidrosis?

Hyperhidrosis is the medical term for excessive sweating. This medical condition occurs when overactive sweat glands release a volume of sweat that is significantly more than the body’s normal requirements for cooling. There are two types of hyperhidrosis: one is called focal hyperhidrosis (sweating confined to a particular area) and the other is called generalised hyperhidrosis (sweating all over the body). Both of these conditions can be classified as being either primary (no known cause) or secondary (caused by either a medical condition or side effects of some medications).