Causes of Flushing or Hot Flashes
Hot flashes or flushing are considered to be a characteristic symptom of the menopausal transition; however, they also can occur in men due to conditions such as low testosterone. Flushing also can occur in people as a result of certain rare medical conditions such as carcinoid syndrome, a medical condition in which a carcinoid tumor secretes large amounts of serotonin, a hormone produced by the body.
Additional symptoms of carcinoid syndrome or carcinoid tumor include:
- Abdominal pain
- Niacin deficiency
- Diarrhea (up to 20 times per day)
- Gastrointestinal bleeding