Why does sex hurt? - NHS - Reasons for painful sex Like 94.82% | 222 votes Views: 404 110 Download Vaginismus. This is a common condition. Vaginal infections. Categories: Boy sex Comments: Add Comment Cancel By Zulkigal - 22:31 Problems with the cervix (opening to the uterus). By Yozshura - 01:12 Problems with the uterus. By Voodootaur - 09:55 Problems with the ovaries. By Brazil - 12:25 Pelvic inflammatory disease (PID). By Mazulkis - 17:26 Ectopic pregnancy.