Heavy Periods, Anemia, and Fibroids: Finding the Cause and Choosing Treatment

Heavy bleeding is a health issue

If periods dictate where you can go, make you change products repeatedly overnight, or leave you exhausted, bring it up at a medical visit. Heavy bleeding can reduce iron stores and eventually cause anemia. You may notice fatigue, headaches, reduced exercise tolerance, dizziness, or breathlessness. Treating the bleeding and replacing iron are related but separate parts of care. PR21

Doctors use the term abnormal uterine bleeding for bleeding that differs in amount, timing, frequency, or duration. Possible causes include fibroids, polyps, adenomyosis, irregular ovulation, a bleeding disorder, medication effects, and changes in the uterine lining. Pregnancy-related bleeding needs a separate assessment. Perimenopause can change cycles, but it should not become an automatic explanation for every new bleeding pattern. PR22

When to get care

Emergency care is appropriate when bleeding is accompanied by fainting, chest pain, severe breathlessness, marked weakness, or other signs of instability. Repeatedly soaking a pad or tampon every hour is a reason to obtain urgent advice, particularly if it continues. Possible pregnancy with pain or bleeding also needs prompt assessment.

Arrange an appointment for bleeding that lasts longer than seven days, recurrent large clots, bleeding between periods, bleeding after sex, or symptoms of iron deficiency. Any bleeding after menopause should be checked, even one episode of light spotting. Do not wait to see whether it happens every month. PR21 PR46

A useful evaluation has more than one question

First, how much blood loss is occurring and is the person stable? Second, what is causing it? Third, which treatments fit the person's medical history, preferences, and pregnancy plans?

Your clinician may ask about pregnancy possibility, contraception, blood thinners, previous procedures, family history, and the pattern of bleeding. Tests may include a blood count, iron studies, pregnancy testing, selected hormone tests, and ultrasound. The decision to obtain a sample of the uterine lining depends on age and risk. ACOG recommends sampling in older reproductive-age patients with abnormal bleeding and in younger patients with persistent bleeding, unsuccessful treatment, or risks associated with prolonged unopposed estrogen exposure. PR22

An ultrasound can help identify fibroids, but the finding must fit the symptoms. A small fibroid outside the uterine cavity may not explain substantial bleeding. Similarly, finding a fibroid should not prevent evaluation of another possible cause. Ask what the scan shows, where the fibroids are located, and whether the lining of the uterus needs separate assessment.

Treatment choices

These are categories to discuss, not a personal treatment plan. A medicine prescribed to one person may be unsuitable for another. Heavy bleeding that makes someone unstable needs immediate treatment rather than an outpatient comparison table. PR18 PR21 PR22 PR23

Newer medicines need a careful safety discussion

One available option is relugolix combined with estradiol and norethindrone acetate, sold as Myfembree, for heavy bleeding associated with fibroids in premenopausal women. It also has an indication for moderate to severe endometriosis pain. Its labeling limits use to 24 months because bone loss may continue and may not fully reverse. It carries important blood-clot and cardiovascular warnings and requires assessment of pregnancy status and bone health. It does not prevent pregnancy. The label calls for effective nonhormonal contraception during treatment and for one week afterward; hormonal contraception should be stopped before starting according to the prescriber's plan. Review the complete regimen before making a change. PR25

The fact that a treatment is newer does not establish that it is the best choice. Cost, coverage, expected benefit, side effects, and what happens after treatment stops should all be part of the discussion.

Procedures are different from one another

Myomectomy removes fibroids while preserving the uterus. Hysterectomy removes the uterus and ends the possibility of carrying a pregnancy. The decision to remove ovaries is separate and should be discussed explicitly. Some patients can have a targeted hysteroscopic procedure for a fibroid growing into the cavity. Radiofrequency procedures may be options for selected fibroids, but future pregnancy considerations require careful counseling. PR23

Uterine artery embolization reduces blood flow to fibroids. It can help avoid a larger operation for some patients, but it has its own risks, may require later treatment, and needs special consideration when future pregnancy is a goal. An interventional radiologist and gynecologist may both contribute to the discussion. PR24

Endometrial ablation treats the uterine lining and is a different procedure from fibroid removal. It is not appropriate if you want a future pregnancy, and it does not provide contraception. Pregnancy can still occur afterward and can be dangerous; an effective contraception plan is needed until menopause when pregnancy remains possible. Ask whether the cause of bleeding has been adequately evaluated before the procedure. A treatment should not be chosen before the patient's reproductive goals are known. PR21 PR23 PR70

Plan the follow-up before leaving

Agree on what improvement should look like and when to contact the office if it does not happen. Keep a record of bleeding, fatigue, and medication effects. Ask when the blood count or iron stores will be rechecked. If you have been told you have fibroids for years but symptoms have changed, that change deserves attention.

Questions to bring: Is the fibroid definitely the cause? Do I need a lining sample? Am I iron deficient even if my blood count is near normal? Which options preserve fertility? What will happen if treatment fails? Can I compare medical, gynecologic, and interventional-radiology options?