
Some women experience night sweats during pregnancy due to hormonal changes. This is a normal part of menopause and while annoying, it is not necessarily dangerous or a sign of underlying disease. One of the most common causes of night sweats in women over 40 is the hormonal changes related to menopause and perimenopause. While some causes of night sweats, such as menopause, may be relatively harmless, night sweats may also be a sign of a serious underlying disease.They can be distressing and disrupt sleep patterns if severe the patient may be frequently awakened due to the discomfort of damp sleepwear.

Some patients may have a self-limited course, where as some may experience sleep hydrosis for life. Natural History, Complications and Prognosis

Diaphoresis: Diaphoresis is a cold sweat.True night sweats with medical causes should be properly investigated by a medical physician. A night sweat caused by a medical condition or infection can be described as ‘severe hot flashes occurring at night that can drench sleepwear and sheets, which are not related to an overheated environment’. Sleep hyperhidrosis, more commonly known as the night sweats, is the occurrence of excessive sweating ( hyperhidrosis) during sleep. 5 Natural History, Complications and Prognosis.
