Hyperhidrosis without a known cause. A more frequent condition than secondary hyperhidrosis. Localized commonly in the hands, armpits, scalp, face, and/or feet. Starts during childhood or early adolesence, worsens during puberty, and then persists for the rest of one's life. Nervousness and psychiatric disorders are rarely the cause. The excessive sweating is very embarrassing and social, professional, and intimate relationships are often seriously affected.

SECONDARY HYPERHIDROSIS

• Caused by an underlying condition.
• Usually causes excess sweating of the entire body, however.
   Some of these conditions are:

• Endocrine disorders such as hyperthyroidism.
• Endocrine treatment for malignant disease.
• Menopause
• Obesity
• Psychiatric disorders
• Systemic malignant disease