The extent of sweating is variable between individuals.
When sweating is deemed excessive it can be a symptom of a medical condition. These can include hormonal imbalances, blood disorders or infections.
It can also arise with no specific cause. This is referred to as primary hyperhidrosis and may effect the face, armpits (axillae), hands, groin and feet to different degrees.
The cause of primary hyperhidrosis is thought to be related to the nerves supplying the sweat glands.
A treatment to control the symptoms involves superficial injection of BTA to control the nerve signals to the sweat glands in the skin in the affected areas.