Abnormal Bleeding: When to Worry About Endometrial Issues - Obstetrics and Gynecology

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Abnormal bleeding


Recently, I have experienced several instances of abnormal bleeding (twice, menstruation returned 10 days after it ended).
I had a Pap smear this year, and HPV testing was normal.
The endometrial thickness was within 0.5 cm after my menstrual period and under 1 cm before my period.
Should I be concerned about potential endometrial issues? Additionally, one doctor suggested performing a dilation and curettage (D&C), while two others believe it is unnecessary since the endometrial thickness is within normal limits.
Should we not suspect anything if it is within normal values? Which procedure is recommended between D&C and hysteroscopy? I have heard that hysteroscopy may pose a risk of spreading if there are any concerning findings; is that true? Thank you!

Ms. Li, 40~49 year old female. Ask Date: 2017/05/03

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, it could be ovulatory bleeding.
If all tests are normal, you can just monitor it for now.
Wishing you good health.

Reply Date: 2017/05/03

More Info


Abnormal bleeding can be a significant concern for many women, and understanding when to seek further evaluation is crucial for maintaining reproductive health. Based on your description of experiencing abnormal bleeding, including episodes of bleeding occurring shortly after your menstrual period, it is essential to consider several factors before concluding whether there is an underlying issue with the endometrium (the lining of the uterus).

Firstly, it is reassuring that you have undergone a Pap smear and HPV testing, both of which returned normal results. These tests are vital in screening for cervical cancer and HPV-related abnormalities. Additionally, the measurements of your endometrial thickness, being within normal limits (0.5 cm post-menstruation and 1 cm pre-menstruation), suggest that there may not be an immediate concern regarding endometrial hyperplasia or malignancy. Generally, a normal endometrial thickness is considered to be less than 1 cm in premenopausal women.

However, the occurrence of abnormal bleeding, especially if it is recurrent and not associated with your typical menstrual cycle, warrants further investigation. The fact that you have experienced bleeding shortly after your period could indicate several possibilities, including hormonal imbalances, ovulatory dysfunction, or even structural abnormalities such as polyps or fibroids, which may not always be evident on initial imaging studies.

Regarding the recommendation for a dilation and curettage (D&C) versus a hysteroscopy, both procedures serve different purposes. A D&C involves scraping the endometrial lining and is often used for diagnostic and therapeutic reasons, especially in cases of heavy bleeding or suspected retained products of conception. However, it is a blind procedure, meaning that the physician cannot directly visualize the uterine cavity during the process.

On the other hand, hysteroscopy is a minimally invasive procedure that allows direct visualization of the uterine cavity using a hysteroscope. This method is advantageous because it can identify abnormalities such as polyps, fibroids, or other lesions that may not be detected through imaging alone. If a problem is found during hysteroscopy, the physician can often treat it at the same time, which is a significant benefit.

Concerns about the potential for "spreading" during hysteroscopy are generally unfounded. The procedure is performed under sterile conditions, and the risk of dissemination of any abnormal cells is minimal. Hysteroscopy is considered safe and is often preferred for its diagnostic accuracy and therapeutic capabilities.

In conclusion, while your current endometrial measurements are within normal limits and your previous screenings have been clear, the abnormal bleeding you are experiencing should not be ignored. It is advisable to follow up with your healthcare provider to discuss the possibility of a hysteroscopy, especially if the bleeding persists or worsens. This approach will provide a clearer understanding of your uterine health and help determine the most appropriate course of action to address your symptoms. Always prioritize open communication with your healthcare provider regarding any changes in your menstrual cycle or concerns about your reproductive health.

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