What are the causes of menstruation lasting for over ten days?

Many women experience irregular menstruation in daily life. Normally, a menstrual period lasts 3–7 days; however, some women experience prolonged bleeding that does not subside for an extended duration—sometimes lasting over ten days. Such prolonged menstruation can be highly distressing and may indicate underlying gynecological conditions or other health issues. Below, we explore the possible causes of menstruation lasting more than ten days.

Why does menstruation persist beyond ten days?

The normal duration of menstruation ranges from 2 to 7 days, with a minority of women experiencing periods lasting 3–5 days. Menstruation exceeding 7 days is considered prolonged. Prolonged menstrual bleeding is commonly attributed to blood stasis caused by obstruction of blood circulation (a typical pattern in Traditional Chinese Medicine). Treatment may involve using blood-activating and stasis-resolving medications.

Normal menstrual bleeding typically lasts 3–7 days; bleeding persisting beyond 10 days is classified as prolonged. Excessive or prolonged menstrual bleeding may stem from various causes, including physical exertion or exposure to cold during menstruation, endocrine disorders, intrauterine device (IUD) use, gynecological inflammation, uterine fibroids, hematologic disorders, hepatic or renal disease, abnormal endometrial tissue, or general menstrual irregularity.

Persistent, non-resolving menstruation requires targeted treatment. For dysfunctional uterine bleeding (DUB), the primary goal is hemostasis, followed by regulation of the menstrual cycle to prevent recurrence. In cases of uterine fibroids, management depends on tumor size—either pharmacotherapy or surgical intervention may be indicated. Women with luteal phase deficiency may benefit from short-term hormonal therapy to regulate their cycles. If prolonged bleeding is linked to IUD use, alternative contraceptive methods should be considered.

Additional Information: Key Precautions for Persistent Menstrual Bleeding

1. Improve unhealthy lifestyle habits, mitigate adverse environmental influences, and manage psychological stressors—factors that may disrupt the hypothalamic-pituitary-ovarian axis and contribute to menstrual irregularities.

2. Reduce occupational stress and promote emotional relaxation.

3. Minimize exposure to electromagnetic radiation and excessive noise.

4. Avoid indiscriminate medication use, smoking, and unguided weight-loss practices.

5. Engage regularly in physical activity—such as swimming, running, brisk walking, or aerobic exercise—to enhance physical fitness, maintain healthy body composition, and alleviate mental stress.

The above outlines potential causes of menstruation lasting over ten days. We hope this information proves helpful to you.