Changes in Menstrual Flow and Color: What to Know

Sudden changes in the volume and color of menstruation?

Hello, Doctor.
My menstrual cycle was normal when it started on February 3rd, but suddenly from March 15th to March 18th, my period changed to a brown color and was very light.
Most of the time, I only noticed a small amount when I wiped, with just a few drops on the pad.
During these three days, I occasionally experienced mild lower back pain and slight discomfort in my lower abdomen, but it was very light and did not affect my daily life (I usually have a delay of 10-15 days in my menstrual cycle every three months).
After having sexual intercourse on April 1st, I noticed pinkish discharge when I wiped.
Could this indicate the possibility of having endometriosis, as both of my sisters have it? I just gave birth last May.
Thank you, Doctor, for taking the time to answer my questions.

Ling, 20~29 year old female. Ask Date: 2022/04/01

Dr. Wu Xianghui reply Obstetrics and Gynecology

1.
"Abnormal vaginal bleeding" has numerous causes, including lifestyle habits, stress, age, vaginal infections, benign gynecological conditions, and malignant tumors, among others.
Therefore, it is recommended that you visit a professional obstetrician-gynecologist for examination and evaluation.

2.
It is advisable to seek outpatient evaluation as soon as bleeding is noticed, as this makes it easier to identify potential issues.

3.
"Chocolate cysts" can only be diagnosed after a transvaginal ultrasound examination.

Reply Date: 2022/04/01

More Info

Understanding changes in menstrual flow and color can be quite concerning, especially when there are noticeable differences from what is considered normal for you. Based on your description, it seems you experienced a shift in your menstrual flow from a typical period to a lighter, brownish discharge, accompanied by mild discomfort. Let's break down what these changes might indicate and the potential implications for your health.

Firstly, menstrual blood can vary in color and consistency throughout the cycle. Fresh menstrual blood is typically bright red, while older blood can appear darker, even brown. This brown color often indicates that the blood has taken longer to exit the uterus, which can happen at the beginning or end of a menstrual period. In your case, the brown discharge you experienced from March 15 to March 18 could simply be older blood being expelled, particularly if the flow was lighter than usual.

The fact that you mentioned experiencing mild lower abdominal discomfort and back pain is also important. Many women experience some degree of cramping or discomfort during their menstrual cycle, which can vary in intensity. However, if the pain is significantly different from what you usually experience or if it persists, it could warrant further investigation.

Regarding the pink discharge you observed after sexual intercourse on April 1, this could be due to several factors. It might be related to ovulation, especially if it occurred around the time you typically ovulate, or it could be a sign of cervical irritation, which can happen after sexual activity. However, it is also important to consider the possibility of other conditions, such as endometriosis or fibroids, especially given your family history of chocolate cysts (endometriomas), which are associated with endometriosis.

While your sisters' experiences with chocolate cysts may raise concerns, it is essential to remember that having a family history does not guarantee that you will develop the same condition. However, it does suggest that you should be vigilant about any unusual symptoms. Chocolate cysts can cause irregular menstrual cycles, pelvic pain, and other symptoms, so if you are experiencing significant changes or discomfort, it would be wise to consult with a healthcare provider.

In summary, the changes in your menstrual flow and color could be attributed to normal variations in your cycle, especially following childbirth, which can lead to hormonal fluctuations. However, given your symptoms and family history, it would be prudent to schedule an appointment with your gynecologist. They may recommend a pelvic exam, ultrasound, or other diagnostic tests to rule out any underlying conditions, including endometriosis or other gynecological issues.

In conclusion, while some variations in menstrual flow and color can be normal, it is always best to err on the side of caution, especially when accompanied by discomfort or changes in your cycle. Keeping track of your symptoms and discussing them with a healthcare professional will provide you with the best guidance and care tailored to your individual health needs.

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