What Are Diseases You May Have If You Have Black or Clot in Discharge?


Previously, we explained what the black color discharge is and if there is a possibility that you may have a disease or not. Even if you have black spot or clot in discharge, it doesn’t mean that you have a disease. However, if it lasts long for more than 3 days, it’s better to see your doctor.

In this article, we will introduce what kind of diseases you may have.

You may be worried.

If you have the unusual period or see different discharge as usual, you may be worried “what’s happening to your body”. When you see some unusual discharge, please be aware of the color, odor etc. to figure out whether it’s normal or not.

Discharge is one of barometers which tells you about your body, therefore, please take a look carefully.

What kind of diseases you may have?

Even if you have a healthy body, it’s better to know about the risk, especially for diseases related to women body. Right knowledge will be helpful.

Endometrial / cervical polyps

Endometrial polyps and cervical polyps are tumors at the entrance of the endometrium or uterus that can cause the mucosal tissue of the cervix, which is the tube connecting the vagina and the uterus, to grow and droop like a mushroom. 90% is benign in the size of 2-3mm to 1cm, however it may be malignant. If found, it is often removed by surgery.

Women in their 30s and 40s who have many pregnancies are more likely to have it, and may have bleeding other than menstruation due to irritation such as sports, sex, or defecation, or may have a brown or black color due to mixing with blood. You may also notice that the smell of the vaginal discharge is different. If you have any of these symptoms, suspect that you may have polyps.


Fibroids are benign tumors that occur in the uterus. There are few subjective symptoms, however you may have the following symptoms:

  • More bleeding during menstruation than usual
  • Menstrual pain is worse than usual
  • Abnormal bleeding may be mixed with the discharge and you see black discharge

Uterine fibroids are often found in gynecological examinations and tests for pregnant women. It is said that women over the age of 30 tend to have, and about 75% of women may have, including women who don’t notice it.

Endometrial / cervical cancer

If you have bleeding other than during sex or menstruation, or have lower back or abdominal pain and a persistent black discharge, you may have endometrial or cervical cancer. As the cancer progresses, the pus will mix with the discharge and the smell will be strong.

Endometrial cancer is found in women in their 50s due to cancer from the endometrium. Cervical cancer is a cancer of the cervix at the entrance of the uterus, most often in women in their 40s. However, cervical cancer occurs in young people in recent years.

Cervical cancer is a cancer that is located at the entrance of the uterus and is easy to detect and can be cured by early detection. However, as the cancer grows, treatment becomes more difficult. Therefore, take cancer screening regularly for early detection.

Uterine adenomyosis

Adenomyosis is a disease in which tissue similar to endometrial cells enters the myometrium for some reason and gradually grows deeper and deeper inside. Although there are often no subjective symptoms, as the disease progresses, inflammation spreads around the uterus and swells. As the uterus grows, bleeding may be abnormal, with excessive menstruation, associated anemia, and severe menstrual pain.

A common disease among women in their late 30s and 40s, 30-50% of people who have uterine fibroids also have uterine adenomyosis. It often occurs in people who have undergone surgery such as miscarriage or cesarean section, or in multiparous women.

Pubis louse

Many people have the image of hair disease when talking about louse, however it is a kind of venereal disease that can be transmitted to pubic hair by sex. When infected, lice suck blood from the skin, causing intense itching and a black spot-like stain on the underwear.

It takes time to remove lice because they lay eggs and one after another one is born. Therefore, if you feel unusual, see your doctor as soon as possible. There are other diseases that are noticed by changes in vaginal discharge.

What to do when black discharge continues

Black vaginal discharge may have been caused by the mixture of menstrual blood left in the vagina. There is no problem if the black discharge is temporary as we mentioned in the previous article. However, when menstruation does not end and bleeding continues, or when black discharges continue, if the amount of vaginal discharge is more than usual, or if you experience symptoms such as abdominal pain, it may be a sign of some diseases.

In particular, if you see black discharge, the internal tissue of the uterus that has been damaged and peeled off may be mixed with the discharge, which may be a disease related to the uterus. Consult your obstetrician/gynecologist immediately.


Cervical or endometrial cancer is a disease that can be cured if it is discovered and treated immediately. Conversely, if you don’t have a regular check, it may be too late when you find it. Have a regular check and if you see any abnormality, see your doctor without self-judge. 

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