What causes excessive sweating for no reason?
Secondary hyperhidrosis (also called generalized hyperhidrosis) causes excessive sweating all over the body or in a larger area of the body and can be caused by excessive heat as well as a medical condition or medication.
Health conditions that may cause excessive sweating include:
- Diabetic hypoglycemia.
- Endocarditis (an infection of the inner lining of the heart)
- Fever of undetermined cause.
- Generalized anxiety disorder.
- Heart attack.
- Heat exhaustion.
- Excessive sweating is when you sweat more than you might expect based on the surrounding temperature or your activity level or stress. Excessive sweating, or hyperhidrosis (hi-pur-hi-DROE-sis), can affect your entire body or just certain areas, particularly your palms, soles, underarms or face.
- When excessive sweating is localized (e.g. palms, soles, face, underarms, scalp) it is referred to as primary hyperhidrosis or focal hyperhidrosis. Excessive sweating involving the whole body is termed generalized hyperhidrosis or secondary hyperhidrosis. It is usually the result of some other, underlying condition.
- Causes. If heavy sweating has no underlying medical cause, it's called primary hyperhidrosis. This type occurs when the nerves responsible for triggering your sweat glands become overactive and call for more perspiration even when it's not needed.
Night sweats are an early symptom of some cancers. The most common type of cancer associated with night sweats is lymphoma. However, people who have an undiagnosed cancer frequently have other symptoms as well, such as unexplained weight loss and fevers. Medications .
- Stay away from these triggers, which are known in some people to elicit hot flashes and night sweats:
- smoking and inhaling secondhand smoke.
- wearing tight, restrictive clothing.
- using heavy blankets or sheets on your bed.
- drinking alcohol and caffeine.
- eating spicy foods.
- being in warm rooms.
- experiencing excess stress.
- During a hot flash, you might have: A sudden feeling of warmth spreading through your upper body and face. A flushed appearance with red, blotchy skin. Rapid heartbeat.
- Night sweats aren't usually a cause for concern. Night sweats accompanied by a high fever, cough, or unexplained weight loss, may be a sign of a serious medical condition. If you've been diagnosed with lymphoma or HIV, night sweats may be a sign that your disease is progressing.
Updated: 4th December 2019