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Condition Overview
Hyperhidrosis is a disease characterized by perspiration
in excess of the physiologic amount necessary to maintain
thermal homeostasis.[9]
Primary or idiopathic hyperhidrosis and secondary hyperhidrosis
are the two main categories.[19]
Patients can have excessive sweating either in a localized
area (focal) or over the entire body (generalized).[19]
Primary disease is usually focal, affecting the soles, palms,
and axillae in various combinations and with varying degrees
of severity.[2]
Secondary hyperhidrosis can be generalized or focal.[2]
In secondary hyperhidrosis the symptoms are due to one of
a large number of medical conditions, including endocrine disorders,
neurological problems, use of certain drugs, cancer, chronic
infections, dermatologic syndromes, and conditions associated
with excess catecholamine discharge.[19]
Occasionally hyperhidrosis can be seen on the head and face
as a primary disorder [92]
or become apparent as gustatory sweating secondary to parotid
surgery or diabetes.[83,111]
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