Abnormal Bleeding: Possible Causes and Concerns - Obstetrics and Gynecology

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Abnormal bleeding


Hello, I got my period on July 16.
I had intercourse with my boyfriend on August 16 (withdrawal method) and again on August 17 (with a condom).
However, on August 20, I felt like my period was coming, but it was lighter than usual and brownish.
On September 7, I experienced bleeding again, and I'm unsure if it's my period or early pregnancy bleeding.
The amount is not much, but I occasionally feel discomfort in my abdomen.
In the past three days, I've had three instances of passing blood, which is bright red and has a smell similar to fresh blood.
I'm worried about the possibility of being pregnant...
(My usual menstrual cycle is 28-36 days.)

Ggg, 20~29 year old female. Ask Date: 2017/09/09

Dr. Huang Jianzhong reply Obstetrics and Gynecology


On July 16, I got my period.
On August 16, I had intercourse with my boyfriend (withdrawal method).
On August 17, we also had intercourse (with a condom), but on August 20, I felt like my period was coming, although the flow was lighter than usual and brownish.
On September 7, I experienced bleeding again, and I'm unsure if it's my period or early pregnancy bleeding.
The amount isn't much, but I occasionally feel discomfort in my abdomen.
Over the past three days, I've had three instances of passing blood that is bright red in color, with a smell similar to fresh blood.
I'm uncertain if I might be pregnant and feeling a bit worried...
(My usual menstrual cycle is 28-36 days).
Answer: It is likely ovulation bleeding.

Reply Date: 2017/09/09

More Info


Abnormal bleeding can be a source of significant concern for many women, and understanding the potential causes is crucial for addressing any underlying issues. Based on your description, it seems you are experiencing irregular bleeding that could be related to several factors, including hormonal fluctuations, potential pregnancy, or other gynecological conditions.

Firstly, the timing of your menstrual cycle is important. You mentioned that your cycle typically ranges from 28 to 36 days. Given that you had your last period on July 16 and had sexual intercourse on August 16 and August 17, it is possible that the bleeding you experienced on September 7 could be related to several factors, including ovulation bleeding, implantation bleeding, or even the onset of your next menstrual cycle.

1. Ovulation Bleeding: Some women experience light spotting around the time of ovulation, which typically occurs about 14 days before the next expected period. This bleeding is usually light and can be brown or pink in color. If your cycle is longer, ovulation might occur later, which could explain the timing of your spotting.

2. Implantation Bleeding: If you are concerned about the possibility of pregnancy, it is worth noting that implantation bleeding can occur when a fertilized egg attaches to the lining of the uterus, usually around 6 to 12 days after conception. This type of bleeding is typically light and may be accompanied by mild cramping.

3. Hormonal Imbalances: Irregular bleeding can also be a sign of hormonal imbalances, which can be influenced by stress, changes in weight, or lifestyle factors. If your body is experiencing fluctuations in hormone levels, it can lead to unexpected bleeding outside of your regular menstrual cycle.

4. Other Gynecological Issues: Conditions such as polyps, fibroids, or endometriosis can also cause abnormal bleeding. These conditions may require further evaluation through ultrasound or other imaging studies to rule out any structural abnormalities in the uterus.

Given that you have experienced abdominal discomfort and changes in the color and consistency of your bleeding, it is advisable to consult a healthcare provider for a thorough evaluation. They may recommend a pelvic examination, blood tests, or imaging studies to determine the cause of your symptoms.

In the meantime, keep track of your symptoms, including the timing, color, and amount of bleeding, as well as any associated symptoms like pain or discomfort. This information can be helpful for your healthcare provider in diagnosing the issue.

Lastly, while it is understandable to feel anxious about these symptoms, remember that many women experience irregular bleeding at some point in their lives, and it is often manageable with appropriate medical care. If you suspect you might be pregnant, consider taking a home pregnancy test for confirmation, and follow up with your healthcare provider regardless of the result to address your concerns about abnormal bleeding.

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