Nevus of Ota

Nevus of Ota is a blue spot that occurs on the face. It was first reported by Dr. M. T. Ota (of Japan) in 1939. However, it should not be confused with Mongolian spot. In Japanese it is known as 太田母斑. Females are nearly 5 times more likely to be affected than men, and it is rare among white people. Nevus of Ota may not be congenital, and may appear during puberty. Q-switched laser treatment provides a satisfactory treatment.