Excessive sweating of palms, soles or armpits

Some people’s sweat glands are unduly excessively active and for unknown reasons, they produce a continuous and large amounts of sweat. This phenomenon is abnormal sweating or excessive sweating (medical: hyperhidrosis), which affects around 5% of the world’s population.

Symptoms of excessive sweating

Sweating is a “normal” and necessary function which is of great importance in the regulation of body temperature. There are millions of sweat-producing glands in your body. Warm weather, exercise, stress, infectious diseases, and consuming strong-flavoured (e.g. hot and highly spiced) foods activate your sweat glands and increase sweat production (sweating).

The most accepted view is that abnormal sweating is a consequence of the hyperactivity of the sympathetic nervous system, which causes the sweat glands to continuously produce sweat. Patients with excessive sweating sweat 4-5 times more than average. The amount of sweat significantly exceeds what the body needs to maintain and control the body temperature.

In essence, the sweat glands of people with excessive sweating are always “switched ON”, and do not require a trigger to activate them, such as a rise in body temperature while exercising.

hyperhidrosis or excessive sweating of palms, soles or armits

Forms of excessive sweating

Primary hyperhidrosis is most often a hereditary disease, i.e., it shows family accumulation. According to research findings, it is related to excessive activity of the sympathetic nervous system. The nerves running to the sweat glands are malfunctioning, sending signals to the sweat glands to secrete excessive amounts of sweat, even if there is no reason to do so. Even at rest and in cool weather, the sweating is so strong that a “healthy-ish” person can only experience it in the heat of the sauna.

Primary excessive sweating usually appears as early as childhood. In most cases, sweating is strongest in a defined area of the body, such as the palms, soles, armpits, less often the head, face, and neck. Rarely, several areas can be affected at the same time.

Although excessive sweating is not a life-threatening condition, it can also have a serious impact on everyday life, learning, work, and relationships. The problem can lead to mental problems, depression, and isolation.

Secondary excessive sweating can also be caused by a disease or a side effect of a medicine. However, this usually affects the whole body. In such a case, identifying and eliminating the root cause(s) is the method of treatment.


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