Causes of severe pain during ovulation

Ordinary ovulation pain can arise as the follicle stretches the ovary and releases fluid when the egg is released. Pain that is intense, prolonged, new or worsening may have another explanation, including a cyst that leaks, bleeds or twists, endometriosis, pelvic infection, or a non-gynaecological condition affecting the bowel or appendix.

Ovulation pain is often felt low on one side near the middle of a menstrual cycle. The side can change between cycles. Timing can suggest ovulation, but it cannot prove the cause because cyst pain, endometriosis and other pelvic symptoms may overlap with the same days.

Endometriosis can present with cyclical pelvic pain, painful periods, pain during sex or bowel and bladder symptoms. Ovarian cysts can present with one-sided aching, pressure or sudden pain. Neither condition can be diagnosed from pain location alone.

Record the first day of each period, the day and side of pain, how long it lasts, and associated bleeding, discharge, nausea, urinary or bowel changes. A clinician may consider a pregnancy test, pelvic examination, infection testing or ultrasound according to your symptoms.

For familiar mild pain, rest, warmth and a pain medicine that is safe for you may help. Severe or recurring pain deserves a medical appointment; repeated self-treatment can mask a pattern that would guide diagnosis.

Get urgent help for sudden severe pelvic pain, especially with faintness, shoulder-tip pain, heavy bleeding, fever, repeated vomiting or a rigid or swollen abdomen. Urgent assessment is also needed if pregnancy is possible, because pregnancy-related emergencies can resemble ovulation pain.

Ask whether the timing fits ovulation, which alternative causes need checking, whether imaging is appropriate, and which pain relief suits your health and pregnancy plans. If symptoms recur, discuss whether hormonal suppression of ovulation is suitable and what follow-up is needed.