This history suggests secondary dysmenorrhea with possible heavy menstrual bleeding, rather than simple primary dysmenorrhea, because the painful periods began recently at age 22 and are accompanied by clots.
Possible causes include:
- Endometriosis
- Adenomyosis
- Uterine fibroids
- Endometrial polyp or other structural uterine cause
- Less commonly, a bleeding disorder, thyroid disorder, pregnancy-related cause, or pelvic infection, depending on associated symptoms
Passing small clots can occur with a heavier flow, but clots about the size of a large coin or more, bleeding for more than 7 days, flooding through a pad/tampon hourly, or symptoms of anemia make assessment more urgent.
Recommended clinical evaluation:
- Menstrual history: duration, number of pads/tampons, cycle regularity, intermenstrual/postcoital bleeding, severity and timing of pain
- Pregnancy test if sexually active
- Examination, including pelvic examination when appropriate
- CBC and ferritin to assess anemia/iron deficiency
- Consider thyroid testing and coagulation screening if the bleeding history suggests it
- Pelvic ultrasound, preferably transvaginal if appropriate, to look for fibroids, adenomyosis, ovarian pathology, or polyps
- Gynecology review if symptoms persist or are severe. A normal ultrasound does not exclude endometriosis.
For pain, NSAIDs such as ibuprofen or naproxen are commonly used if safe for her, ideally started just before or at the onset of menstruation. Hormonal treatment may also help but should be selected after clinician assessment and discussion of pregnancy plans and contraindications.
Seek urgent care for soaking at least one pad/tampon per hour for 2 consecutive hours, fainting/dizziness, shortness of breath, severe sudden pelvic pain, fever, or possible pregnancy.