Medical Definition of Vaginismus
Vaginismus: A sexual dysfunction in women characterized by a painful, involuntary tightening or spasm of the muscles that surround the vaginal entrance that interferes with sexual intercourse. Its cause is unknown, but it may occur in women who fear that penetration will be painful or may develop in response to a previous traumatic or painful
United States. MedlinePlus. "Vaginismus." July 23, 2010. <http://www.nlm.nih.gov/medlineplus/ency/article/001487.htm>.
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