Hyperhidrosis is the term that is used to describe excessive sweating. This condition can affect the whole body or just localised areas, such as the hands, feet or under the arms. Sweating is a natural bodily function and occurs as a way of helping the body to cool down, such as: when exercising, in warm weather or when in a stressful situation.

Excessive sweating usually happens when cooling the body is not necessary and causes the affected person embarrassment and feelings of self-consciousness.
The most common type of excessive sweating is called primary focal hyperhidrosis. The sweat glands become overactive for no apparent reason, causing moisture on various areas of the body, most likely on the hands, feet and face. It is often the case that this condition runs in the family, so genetics will play a big part in people who are affected. Secondary Hyperhidrosis is often due to a medical condition and can cause sweating to occur all over the body.