What Causes Pelvic Floor Muscle Spasm and Pelvic Pain Pelvic muscle spasm occurs when pelvic floor muscle fibres contract and unable to relax.
Pelvic floor muscle spasm in women is called vaginismus. Pelvic floor spasm and pelvic pain also occurs in men.
It's not currently clear whether pelvic pain is caused by pelvic floor spasm or vice versa. Both conditions often coexist and relieving spasm can relieve pain too.