Hyperhidrosis other diagnostic studies

Visible signs of sweating may be noted during a doctor’s visit. A number of tests may also be used to diagnose excessive sweating.

Tests include:

• Starch-iodine test. An iodine solution is applied to the sweaty area. After it dries, starch is sprinkled on the area. The starch-iodine combination turns a dark blue color wherever there is excess sweat.
• Paper test. Special paper is placed on the affected area to absorb the sweat, and then weighed. The heavier it weights, the more sweat has accumulated.

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