What are the reasons for a long menstrual period?

Patient's question:

Menstruation lasts for more than 10 days, what could be the reason?

Doctor's answer:

Your age is unclear, menstrual history is unclear. It is recommended that you stop bleeding and go to the hospital for a gynecological examination.
Most people's menstrual period lasts for 3-5 days, ranging from 1-2 days to 7-8 days, which is within the normal range. The factors that can cause prolonged menstrual periods can be divided into several categories:
1. Uterine dysfunction
Uterine dysfunctional bleeding is a common cause of prolonged menstrual periods. This includes anovulatory dysfunctional uterine bleeding and regular endometrial shedding, both of which are caused by endocrine dysfunction, leading to prolonged menstrual periods.
2. Pelvic inflammation, endometritis
Pelvic inflammation or endometritis can cause issues such as poor endometrial blood circulation, degeneration, necrosis, or pelvic congestion, which can then lead to prolonged menstrual periods.
3. Uterine fibroids
Uterine fibroids, especially submucosal fibroids, can increase the size of the uterus, leading to abnormal contractions and prolonged menstrual periods.
4. Endometriosis
Endometriosis can also affect uterine muscle contraction or enhance endometrial growth, resulting in prolonged menstrual periods.
5. Blood disorders
Conditions such as thrombocytopenic purpura and aplastic anemia can cause prolonged menstrual periods due to coagulation disorders during menstruation.
6. Systemic diseases
Systemic diseases such as chronic anemia, chronic hepatitis, liver cirrhosis, and nephritis can lead to fragile blood vessel walls and increased permeability, resulting in prolonged menstrual periods.

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