Heavy cramps during your period

Heavy cramps during a period can be caused by strong uterine contractions or a pelvic condition, particularly when pain is new or disabling. Mild cramping may accompany normal shedding of the uterine lining, but pain that stops normal activities, worsens over time, or returns despite usual measures deserves clinical review.

Adenomyosis and uterine fibroids can be associated with painful, heavy periods. Endometrial polyps or endometrial hyperplasia may change bleeding, and perimenopause or polycystic ovary syndrome may make cycles less predictable. Heavy bleeding can also contribute to iron deficiency anaemia, which may add fatigue, dizziness, or breathlessness. The symptom pattern—not pain intensity alone—helps a clinician decide which causes to investigate.

Track pain by cycle day, location, duration, and effect on sleep, work, or movement. Record bleeding changes, clots, fever, bowel or bladder symptoms, and medicines already tried. A clinician can review your history and decide whether an examination, blood tests, or pelvic imaging is appropriate. Discuss pain relief before taking it if you have stomach, kidney, liver, bleeding, or pregnancy concerns.

Get urgent medical help if pain is sudden or severe, you feel faint, bleeding is unusually heavy, fever or repeated vomiting occurs, or your abdomen becomes very tender. Seek prompt assessment for new pain with possible pregnancy. Severe symptoms need attention even if cramps have occurred in earlier cycles.

Ask whether the pattern fits primary period pain or suggests adenomyosis, fibroids, or another condition. Ask if you need an anaemia check, imaging, or a treatment plan that matches your contraception and pregnancy goals.