What causes menstrual bleeding lasting over ten days with little flow?

Menstruation lasting for more than ten days without stopping, with light flow, may be caused by factors such as excessive fatigue during menstruation, uterine fibroids, endometrial hyperplasia, endometriosis, or adenomyosis. It is necessary to identify the underlying cause through medical evaluation before initiating treatment. Specific analyses are as follows:

1. Excessive fatigue during menstruation

Excessive physical strain during the menstrual period may lead to prolonged menstruation and persistent spotting. In most cases, menstruation will stop after adequate rest.

2. Uterine fibroids

Larger intramural or submucosal uterine fibroids can enlarge the uterine cavity and increase the surface area of the endometrium, impairing normal uterine contractions and resulting in the aforementioned symptoms. Treatment may include medications such as Guizhi Fuling Pills, Jingangteng Capsules, or Mifepristone Tablets, under a doctor's guidance.

3. Endometrial hyperplasia

Excess estrogen without sufficient counteraction from progesterone can lead to excessive endometrial proliferation, preventing complete shedding of the endometrium and causing prolonged menstrual bleeding with a light flow. This condition can be treated with diagnostic curettage (D&C).

4. Endometriosis

Endometriosis may cause increased menstrual bleeding, worsened pain, and prolonged or incomplete menstruation. The presence of ectopic endometrial tissue can lead to scarring and adhesions, hindering the normal outflow of menstrual blood and thereby extending the menstrual period. Patients may take medications such as Danazol Capsules or Gestronenone Capsules under medical supervision.

5. Adenomyosis

Adenomyosis is commonly associated with menstrual pain and increased bleeding. Menstruation lasting over ten days with light flow may result from abnormal uterine muscle compression or impaired uterine contractions, leading to poor discharge of menstrual blood and prolonged periods. Treatment options include Leuprorelin Acetate Microspheres for Injection or Mifepristone Capsules, used under a doctor’s direction.

If menstrual abnormalities occur, it is recommended to visit a hospital for examinations such as pelvic ultrasound and sex hormone panel (six-item panel) to determine the cause and receive appropriate treatment.