the Persistent Foreign Body Sensation from Anal Fissures - Surgery

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Anal fissure with a sensation of foreign body in the rectum?


Hello Dr.
Chang, can anal fissures cause a persistent feeling of foreign body sensation in the anus? For the past two weeks, I have experienced pain during and after bowel movements.
A few days ago, during a clinic visit, the doctor mentioned that I have a small external hemorrhoid and that the anal fissure is quite large.
I forgot to ask the doctor about the cause of the ongoing foreign body sensation.
Thank you, doctor.

Nìmíng, 20~29 year old female. Ask Date: 2023/06/02

Dr. Zhang Shuhao reply Surgery


The anus may feel foreign when there are wounds or swelling from hemorrhoids, but this sensation will improve once healing and reduction of swelling occur.

Reply Date: 2023/06/02

More Info


Anal fissures are small tears in the lining of the anus, which can cause significant discomfort and pain, particularly during bowel movements. The sensation of a persistent foreign body feeling in the anal region can indeed be associated with anal fissures, and there are several reasons why this sensation may occur.

Firstly, the pain associated with anal fissures can lead to muscle spasms in the anal sphincter. These spasms can create a sensation of tightness or pressure, which may be interpreted as a feeling of something being present in the anal area. This is often exacerbated by the anxiety and discomfort that come with the fissure, leading to a heightened awareness of sensations in that region.

Secondly, the presence of external hemorrhoids, as you mentioned, can also contribute to this sensation. Hemorrhoids can cause swelling and inflammation, which may create a feeling of fullness or pressure. This can be mistaken for a foreign body sensation, especially if the hemorrhoids are external and protruding.

Additionally, the healing process of an anal fissure can lead to changes in the sensitivity of the area. As the tissue heals, it may become more sensitive or reactive, leading to unusual sensations. This heightened sensitivity can make normal sensations feel more pronounced, contributing to the feeling of an object being present.

Moreover, psychological factors can play a role in how we perceive pain and discomfort. Anxiety about bowel movements or the pain associated with fissures can lead to an increased focus on sensations in the anal area, which may amplify the feeling of a foreign body.

To address the persistent foreign body sensation, it is essential to manage the underlying causes effectively. Here are some recommendations:
1. Pain Management: Over-the-counter pain relief medications, such as ibuprofen or acetaminophen, can help alleviate pain and discomfort associated with anal fissures.

2. Topical Treatments: Applying topical anesthetics or medications prescribed by your doctor can help reduce pain and promote healing.

3. Dietary Changes: Increasing fiber intake can help soften stools and reduce straining during bowel movements, which is crucial for healing fissures. Staying hydrated is equally important.

4. Warm Sitz Baths: Soaking in warm water can help relax the anal sphincter and reduce pain, which may alleviate the sensation of a foreign body.

5. Consultation with a Specialist: If the sensation persists or worsens, it may be beneficial to consult a gastroenterologist or a colorectal surgeon. They can provide a thorough examination and discuss potential treatments, including surgical options if necessary.

6. Psychological Support: If anxiety about bowel movements is contributing to your symptoms, consider speaking with a mental health professional who can help you develop coping strategies.

In summary, while anal fissures can indeed lead to a persistent foreign body sensation due to pain, muscle spasms, and heightened sensitivity, addressing the underlying issues through proper management and treatment can significantly improve your comfort and quality of life. If symptoms persist, seeking further medical advice is essential to rule out other potential causes and to receive appropriate care.

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