Most commonly affects women aged 13–35 years, approximately puberty through their prime. Some reports show affected women to men at 9:1. Rare cases have been shown to affect post-menopausal women, children, and men. Incident report is currently unknown. Although rare, men and children have been shown to be affected. Heat, humidity, stress, and exercise have been shown to worsen symptoms. Rate of incidence is currently unknown.<unk><unk>  has also been shown to be severe during menstruation and spontaneously disappear during pregnancy.
Fox–Fordyce disease
Degos disease
Pott disease
Ollier disease
Letterer–Siwe disease
Cruveilhier–Baumgarten disease
Brill–Zinsser disease
Salla disease