Abnormal Menstrual Bleeding: Causes and Concerns - Obstetrics and Gynecology

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Abnormal bleeding


Last month, my period started on July 28, and this month it came four days early on August 24.
I had sexual intercourse on August 14, but there was no ejaculation.
This time, my period only lasted three days with a normal flow and some blood clots.
It stopped on the fourth day, and on the fifth day, I had a little bit of bleeding, but then it stopped completely.
Since then, I've been experiencing very light spotting, which is a light red color mixed with discharge.
However, after wiping a second time, there was nothing.
This has continued until now.
Could you please tell me if there is any issue with this?

Xiao Mei, 10~19 year old female. Ask Date: 2022/09/01

Dr. Lin Manying reply Obstetrics and Gynecology


Hello, please consider taking a pregnancy test or consult for an examination (ultrasound and pelvic exam) to confirm the diagnosis, as hormonal issues are usually the most common.
The Hualien Hospital of the Ministry of Health and Welfare cares about your health.

Reply Date: 2022/09/01

More Info


Abnormal menstrual bleeding can be a source of concern for many women, and understanding its potential causes is essential for addressing any underlying issues. Based on your description, it appears that you experienced a change in your menstrual cycle, including an early onset of your period, a shorter duration of bleeding, and the presence of blood clots. Additionally, you mentioned having light spotting with a reddish discharge after your period had seemingly ended.
There are several factors that can contribute to abnormal menstrual bleeding, and it is important to consider both physiological and pathological causes. Here are some common reasons for changes in menstrual patterns:
1. Hormonal Imbalances: Hormones play a crucial role in regulating the menstrual cycle. Fluctuations in estrogen and progesterone levels can lead to irregularities. Factors such as stress, significant weight changes, excessive exercise, or hormonal contraceptives can disrupt the hormonal balance.

2. Pregnancy: If there is a possibility of pregnancy, even with the use of contraception, it is important to consider that implantation bleeding can occur. This typically happens around the time your period is due and may present as light spotting.

3. Uterine Fibroids or Polyps: These non-cancerous growths in the uterus can cause changes in bleeding patterns, including heavier periods or spotting between periods.

4. Endometriosis: This condition occurs when tissue similar to the lining of the uterus grows outside of it, leading to painful periods and irregular bleeding.

5. Infections: Pelvic inflammatory disease (PID) or sexually transmitted infections (STIs) can cause abnormal bleeding, often accompanied by other symptoms like pain or unusual discharge.

6. Thyroid Issues: An underactive or overactive thyroid can affect menstrual cycles, leading to irregularities.

7. Medications: Certain medications, especially hormonal treatments, can impact menstrual bleeding.
Given your recent sexual activity and the changes in your menstrual cycle, it is advisable to take a pregnancy test if there is any chance of pregnancy. Additionally, if the abnormal bleeding persists, worsens, or is accompanied by other symptoms such as severe pain, fever, or unusual discharge, it is crucial to consult a healthcare provider. They may recommend a pelvic examination, ultrasound, or blood tests to determine the underlying cause of your symptoms.

In summary, while occasional changes in menstrual cycles can be normal, persistent or significant changes warrant further investigation. Keeping track of your menstrual cycle, any accompanying symptoms, and discussing these with a healthcare professional can help ensure that any potential issues are addressed promptly. Remember, your health is paramount, and seeking medical advice is always a prudent step when you notice changes that concern you.

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