The pain associated with pelvic floor disorders can vary depending on the condition. For example, women with pelvic organ prolapse may experience a sense of fullness or pressure in the vagina, while those with interstitial cystitis may feel a burning sensation during urination. Pelvic floor muscle spasms can cause pain in the lower abdomen, buttocks, or thighs. The pain may be constant or intermittent, and it may worsen with certain activities such as sitting for long periods of time or during sexual intercourse.