Why Do You Get Hot Flashes at Night?


Quick Answer

Hot flashes, the most frequent symptom of menopause and perimenopause, occur in more than two-thirds of North American women, and they can cause sweating at night, explains WebMD. Medications, cancers, infections, hormone disorders and neurological conditions also can cause hot flashes at night.

Continue Reading
Related Videos

Full Answer

The exact cause of hot flashes in menopausal women is not known, but they may be the result of changes in circulation, according to WebMD. Idiopathic hyperhidrosis is a condition that can cause hot flashes at night. This occurs when the body chronically produces too much sweat without any determined medical cause. Tuberculosis is an infection that often causes night sweats. Endocarditis, a bacterial infection that causes inflammation of the heart valves, and osteomyelitis, or inflammation in the bones, can cause night sweats. Abscesses and HIV also can be causative factors.

Night sweats are an early symptom of some cancers, notes WebMD; lymphoma is commonly associated with night sweats. Antidepressant medications cause night sweats in up to 22 percent of individuals taking them. Aspirin and acetaminophen often cause sweating. Low blood sugar can cause hot flashes, and individuals using insulin may have hypoglycemia at night, which causes sweating. Hormone disorders, such as hyperthyroidism, cause sweating, as do several neurologic conditions, including stroke and autonomic neuropathy.

Learn more about Women's Health

Related Questions