Vaginismus is the involuntary clenching of the pelvic muscles that surround the outer third of the vagina, specifically the perineal and levator ani muscles. This condition occurs most frequently in women who associate the vaginal area with fear or physical trauma and can be triggered by attempted or imagined vaginal penetration.
Dyspareunia is defined as pain in the vagina during or after intercourse. This condition occurs most commonly in post-menopausal women and can begin gradually or suddenly. It is thought to be caused by decreased estrogen levels, as the estrogen loss triggers vaginal atrophy. Both conditions can be treated with therapy and by working to relax or strengthen the pelvic floor muscles.