Prolonged Menstrual Bleeding: Causes and Concerns - Obstetrics and Gynecology

Share to:

Menstruation lasting continuously for over twenty days?


My mother once had her menstrual period for over twenty days with heavy flow.
She went to see a gynecologist, and the initial Pap smear results were normal.
However, she did not proceed with further tests because she couldn't take leave from work.
She reassured herself that her cycle became normal afterward and said she would address any issues if they arose, but I am worried.
What potential issues could be related to similar problems?

Chen, 20~29 year old female. Ask Date: 2002/11/05

Dr. Lin Zhaopei reply Obstetrics and Gynecology


Having menstruation for over 20 days is certainly an abnormal phenomenon.
Since the cervical smear test results are normal, the issue likely lies within the uterus.
Further examination may require taking time off work, as the physician may recommend a hysteroscopy or endometrial biopsy.
Possible conditions include endometrial hyperplasia, endometrial polyps, or fibroids.
It could also be related to hormonal instability during menopause.
Additionally, atypical endometrial hyperplasia or endometrial cancer should not be overlooked.

Reply Date: 2002/11/05

More Info


Prolonged menstrual bleeding, also known as menorrhagia, can be a concerning symptom and may indicate underlying health issues. It is important to understand the potential causes and implications of this condition, especially when it persists for an extended period, such as twenty days, as you mentioned regarding your mother.

Menorrhagia can be caused by a variety of factors, including hormonal imbalances, uterine abnormalities, medical conditions, and certain medications. Here are some common causes:
1. Hormonal Imbalances: The menstrual cycle is regulated by hormones, and any disruption in hormone levels can lead to prolonged bleeding. Conditions such as polycystic ovary syndrome (PCOS) or thyroid disorders can affect hormone production and lead to irregular or heavy menstrual bleeding.

2. Uterine Abnormalities: Conditions such as uterine fibroids (noncancerous growths in the uterus), polyps (small growths on the uterine lining), or adenomyosis (where the endometrial tissue grows into the uterine wall) can cause heavy and prolonged menstrual bleeding. These conditions can lead to increased blood flow during menstruation and may require medical intervention.

3. Medical Conditions: Certain medical conditions, such as bleeding disorders (like von Willebrand disease or platelet function disorders), can lead to excessive bleeding. Additionally, conditions like endometriosis, where tissue similar to the lining of the uterus grows outside the uterus, can also result in prolonged menstrual bleeding.

4. Medications: Some medications, particularly anticoagulants (blood thinners) or hormonal medications, can affect menstrual bleeding patterns. If your mother is taking any medications, it would be wise to review them with a healthcare provider.

5. Age and Menopause: For women approaching menopause, hormonal fluctuations can lead to changes in menstrual patterns, including prolonged bleeding. This is often a normal part of the transition to menopause, but it should still be monitored.

Given your mother's history of prolonged menstrual bleeding, it is crucial to encourage her to seek further evaluation from a healthcare provider, even if she feels that her symptoms have resolved. While it is reassuring that she has had a Pap smear with normal results, this test primarily screens for cervical cancer and does not evaluate the uterus or ovaries for other potential issues.

If your mother experiences any of the following symptoms, she should seek medical attention promptly:
- Severe pain or cramping
- Dizziness or fainting
- Soaking through one or more sanitary pads or tampons every hour for several hours
- Blood clots larger than a quarter
- Symptoms of anemia, such as fatigue or shortness of breath
In conclusion, while it is possible that your mother’s prolonged menstrual bleeding was a temporary issue that resolved on its own, it is essential to remain vigilant about her health. Encouraging her to follow up with a gynecologist for a comprehensive evaluation, including imaging studies like an ultrasound or further blood tests, can help identify any underlying conditions that may require treatment. Early detection and intervention can significantly improve outcomes and quality of life.

Similar Q&A

Understanding Prolonged Menstrual Bleeding: Causes and Concerns

I experience menstruation that lasts for a month each time, with a significant flow every day without any signs of decreasing. After a month, it starts again after about ten days, which confuses and frightens me. Can you please explain why I am experiencing this?


Dr. Zhan Deqin reply Obstetrics and Gynecology
There are many causes of menstrual irregularities, which may include anovulatory bleeding, medication effects, uterine fibroids, ovarian tumors, or ovarian dysfunction. Please consult your obstetrician-gynecologist for a thorough examination.

[Read More] Understanding Prolonged Menstrual Bleeding: Causes and Concerns


Prolonged Menstrual Bleeding: Causes and When to Seek Help

Menstruation has not stopped, and I have been bleeding for over a month. Initially, the flow was normal, but a few days before it started, the bleeding suddenly increased significantly, and there are also some large blood clots.


Dr. Lin Wenbin reply Obstetrics and Gynecology
Please come quickly to see a doctor for an examination.

[Read More] Prolonged Menstrual Bleeding: Causes and When to Seek Help


Understanding Causes of Prolonged Menstrual Bleeding: Insights and Concerns

I experienced urethritis two months ago, and my cervical smear also showed inflammation. After taking the doctor's medication for a week, I got my period on November 25, but it hasn't stopped since then, with continuous bleeding in between. On December 9, my menstrual c...


Dr. Yang Wangjun reply Obstetrics and Gynecology
Hello: Based on your description, abnormal uterine bleeding has been occurring since November 25. This is typically due to the failure of the follicle from the previous menstrual cycle to rupture and release the egg, resulting in an increasingly enlarged follicle, which can lead ...

[Read More] Understanding Causes of Prolonged Menstrual Bleeding: Insights and Concerns


Understanding Prolonged Menstrual Bleeding: Causes and Concerns

Hello Doctor: My last menstrual period started on May 21. This time it started on June 18, which is three days early. My menstrual cycle has always been regular, typically every 28-30 days, lasting five to six days. However, this time it lasted seven days with ongoing bleeding. I...


Dr. Huang Yiwen reply Obstetrics and Gynecology
Hello Miss Amy: Most people's menstruation is ovulatory, characterized by regularity and predictability. However, sometimes a portion of menstruation can be anovulatory, which may result in it occurring earlier or later than expected. The duration may also be prolonged or sh...

[Read More] Understanding Prolonged Menstrual Bleeding: Causes and Concerns


Related FAQ

Premenstrual Bleeding

(Obstetrics and Gynecology)

Bleeding

(Obstetrics and Gynecology)

Abnormal Bleeding

(Obstetrics and Gynecology)

Implantation Bleeding

(Obstetrics and Gynecology)

Menstrual Abnormalities

(Obstetrics and Gynecology)

Delayed Menstruation

(Obstetrics and Gynecology)

Bleeding Outside Of Menstruation

(Obstetrics and Gynecology)

Post-Coital Bleeding

(Obstetrics and Gynecology)

Anovulatory Menstruation

(Obstetrics and Gynecology)

Menstrual Cramps

(Obstetrics and Gynecology)