Virilization is when a female develops male sex characteristics, or a newborn boy has increased male characteristics at birth.

Virilization may be caused by:

• Excess testosterone production
• Use of anabolic steroids

In newborn girls, the condition may be caused by:

• Certain medications taken by the mother during pregnancy
• Congenital adrenal hyperplasia in the baby or her mother
• Other medical conditions in the mother (such as tumors of the ovaries or adrenal glands that release male hormones)

Signs of virilization in a female may include:

• Deepening of the voice
• Facial hair
• Increase in body hair
• Male-pattern baldness
• Swelling of the clitoris

Tests may include:

• Blood tests to detect excess testosterone in females
• CT scan , MRI , or ultrasound to rule out tumors of the ovaries and adrenal glands

Images

Hypothalamus hormone production

Next Section

Virilization Prevention

Review Date: 06/28/2011
Reviewed By: Ari S. Eckman, MD, Chief, Division of Endocrinology, Diabetes and Metabolism, Trinitas Regional Medical Center, Elizabeth, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)