Rectal Bleeding During Early Pregnancy: Causes and Concerns - Gastroenterology and Hepatology

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Rectal bleeding


I am currently over two months pregnant.
Yesterday, when I went to the bathroom, I noticed bright red blood in the toilet, almost like it was sprayed.
At first, I felt a pressure in my head, and then when I strained, there was blood on the toilet paper.
Today, there was also blood in my stool, but not as much as yesterday—just a couple of drops on the stool.
I still feel that pressure in my head when I start to have a bowel movement, but my stool is soft.
After finishing, I feel a slight burning sensation around my anus.
Since becoming pregnant, I have been drinking very little water because the taste of plain water makes me feel nauseous.
What could be the cause of this? Two years ago, I had a negative fecal occult blood test.

Liu Xiaojie, 30~39 year old female. Ask Date: 2023/01/09

Dr. Chen Shidian reply Gastroenterology and Hepatology


Please visit the colorectal clinic (commonly for bleeding due to internal hemorrhoids or anal fissures).

Reply Date: 2023/01/09

More Info


Experiencing rectal bleeding during early pregnancy can be alarming, and it's important to understand the potential causes and concerns associated with this symptom. Given your situation, where you are two months pregnant and have noticed bright red blood in your stool, there are several factors to consider.

Firstly, it's crucial to differentiate between rectal bleeding and vaginal bleeding. In your case, since you mentioned blood in the toilet and on the stool, this suggests that the bleeding may be originating from the rectal area rather than the vaginal canal. Common causes of rectal bleeding during pregnancy include hemorrhoids, anal fissures, or gastrointestinal issues such as constipation or diverticulosis.

1. Hemorrhoids: Pregnancy increases the pressure on the pelvic blood vessels, which can lead to the development of hemorrhoids. These are swollen veins in the rectal area that can cause bleeding, especially during bowel movements. Symptoms may include pain, itching, and blood on the toilet paper or in the stool.

2. Anal Fissures: These are small tears in the lining of the anus that can occur due to straining during bowel movements. They can cause sharp pain and bleeding, particularly when passing stool.

3. Constipation: Many pregnant women experience constipation due to hormonal changes and dietary changes. Straining to pass hard stools can lead to both hemorrhoids and anal fissures, resulting in bleeding.

4. Gastrointestinal Issues: Conditions such as diverticulosis (small pouches that can form in the walls of the intestines) can also cause rectal bleeding. Although less common, it is important to consider these possibilities, especially if you have a history of gastrointestinal issues.

Given that you have experienced bright red blood and some discomfort, it is essential to consult with your healthcare provider. They may recommend a thorough examination, which could include a physical exam and possibly a colonoscopy, to rule out any serious conditions.
In terms of your hydration, it is concerning that you are not drinking enough water, especially during pregnancy. Dehydration can exacerbate constipation and lead to further complications. It is advisable to increase your fluid intake, as well as your fiber intake, to help prevent constipation and reduce the risk of hemorrhoids and anal fissures. Foods high in fiber include fruits, vegetables, whole grains, and legumes.

Additionally, if you are experiencing significant pain, changes in bowel habits, or if the bleeding persists, it is crucial to seek immediate medical attention. While rectal bleeding can often be benign, it is essential to rule out any serious underlying conditions, especially during pregnancy.

In summary, while rectal bleeding during early pregnancy can be caused by common issues such as hemorrhoids or anal fissures, it is vital to consult with your healthcare provider to ensure proper diagnosis and management. Increasing your fluid and fiber intake can help alleviate some of the symptoms, but professional medical advice is essential to ensure both your health and the health of your baby.

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