Blood in Stool: Causes and When to Seek Help - Surgery

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Blood in stool issue?


Hello, Director Ke.
I have the following symptoms and would like your guidance.
I am a university student, and a few months ago, I experienced some sharp pain in my anus while straining during a bowel movement.
At that time, there was no bleeding when I wiped, so I didn't pay much attention, but I have had a slight sensation on the left side of my anus since then.
Yesterday, during a bowel movement, I noticed that my stool was distinctly dark red and soft, with some spreading, but there were no noticeable blood drops when I wiped, which made me quite anxious.
The day before, I had consumed watermelon juice.
That night, while bathing, I discovered a small, hard lump at the anal opening that is painful when pressed.
It seems to be located where I previously felt the sharp pain.
However, there was no significant bleeding when I wiped, which concerns me.
I have bowel movements about once or twice a day, with varying stool consistency—sometimes formed, sometimes not.
My daily routine is generally normal, and I do not have irregular sleep patterns.
What should I do in this situation?

Mr. Zeng, 20~29 year old female. Ask Date: 2014/07/29

Dr. Ke Fangxu reply Surgery


Based on your description, it seems likely that you may be experiencing acute thrombosed hemorrhoids.
The use of topical ointments for treatment can provide relief in about 1-2 weeks.
However, to obtain a definitive diagnosis, it is essential to visit a physician for a physical examination, including a digital rectal exam.

Reply Date: 2014/07/29

More Info


Understanding blood in stool can be a concerning symptom, and it’s important to approach it with careful consideration. Based on the symptoms you described, there are several potential causes for the bright red blood in your stool and the discomfort you are experiencing.

Firstly, the presence of bright red blood in the stool often indicates that the source of the bleeding is in the lower gastrointestinal tract, which includes the rectum and anus. Common causes of rectal bleeding include hemorrhoids, anal fissures, diverticular disease, and colorectal polyps or cancer. Given that you mentioned experiencing pain and the sensation of a hard lump near the anus, it is possible that you may have developed hemorrhoids or an anal fissure. Hemorrhoids are swollen veins in the rectal area that can cause bleeding, especially during bowel movements, and they can also lead to discomfort and the formation of lumps. An anal fissure, which is a small tear in the lining of the anus, can also cause sharp pain and bleeding during bowel movements.

The fact that you noticed a small, hard lump near the area where you felt pain could suggest the presence of a hemorrhoid or a thrombosed hemorrhoid, which occurs when a blood clot forms in the hemorrhoid. This can be quite painful and may require treatment, especially if it becomes thrombosed.

In your case, the bright red blood and the lump you described warrant a visit to a healthcare professional. It is crucial to seek medical attention, especially since you have experienced changes in your bowel habits and the presence of blood. A healthcare provider can perform a thorough examination, which may include a digital rectal exam or an anoscopy, to determine the exact cause of your symptoms. They may also recommend further tests, such as a colonoscopy, especially if there are concerns about more serious conditions like colorectal cancer, particularly given your age and the changes in your bowel habits.

In terms of when to seek help, you should definitely contact a healthcare provider if you experience any of the following:
- Persistent or worsening pain in the rectal area
- Significant amounts of blood in your stool
- Changes in your bowel habits, such as diarrhea or constipation lasting more than a few days
- Any new lumps or growths in the anal area
- Symptoms of anemia, such as fatigue, weakness, or dizziness
In the meantime, you can take some steps to alleviate discomfort. If you suspect hemorrhoids, over-the-counter treatments such as topical creams or ointments may provide relief. Warm sitz baths can also help soothe the area. However, these measures do not replace the need for a medical evaluation.

Lastly, while it is understandable to feel anxious about these symptoms, it is important to remember that many causes of rectal bleeding are treatable, especially when addressed early. Do not hesitate to reach out to a healthcare provider to discuss your symptoms and get the appropriate care.

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