Symptoms of a Hard Lump Near the Anus: Causes and Concerns - Surgery

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Anal mass


There is a noticeable feeling of a hard lump internally near the posterior side of the anus (close to the coccyx).
It hurts when walking, sitting, squatting, and during bowel movements, but there is no blood in the stool.
What could this symptom indicate?

Torres, 30~39 year old female. Ask Date: 2022/01/12

Dr. Zhang Shuhao reply Surgery


The most common causes of a painful hard lump on the posterior side of the anus are anal abscess or fistula.
Sometimes, if the abscess is deeper, there may not be any visible skin changes, and in more severe cases, it can lead to fever.
It is recommended to visit a colorectal clinic for examination.
If an abscess is confirmed, drainage and antibiotic treatment will be necessary.
Wishing you a speedy recovery.

Reply Date: 2022/01/12

More Info


When experiencing a hard lump near the anus, especially one that causes pain during activities such as walking, sitting, squatting, or having a bowel movement, it is essential to consider several potential causes. While the absence of blood in the stool is a positive sign, it does not rule out the possibility of underlying conditions that may require medical attention.

One of the most common causes of a hard lump in the anal region is a hemorrhoid, which is a swollen vein in the lower rectum or anus. Hemorrhoids can be internal or external, and while they are often associated with symptoms like bleeding, they can also present as a painful lump. External hemorrhoids can become thrombosed, meaning a blood clot forms within them, leading to significant pain and discomfort.

Another possibility is the presence of an anal fissure, which is a small tear in the lining of the anus. Fissures can cause sharp pain during bowel movements and may lead to the formation of a lump due to inflammation or muscle spasms in the anal sphincter.

In some cases, a hard lump may indicate the presence of an abscess, which is a collection of pus that can form due to infection. An anal abscess can cause significant pain and swelling, and it may require drainage by a healthcare professional.

Additionally, conditions such as anal warts (caused by the human papillomavirus) or even more serious concerns like anal cancer could present with similar symptoms. While these conditions are less common, they should not be overlooked, especially if the lump persists or worsens over time.

Given the symptoms you are experiencing, it is crucial to seek medical evaluation. A healthcare provider, particularly a gastroenterologist or a colorectal surgeon, can perform a thorough examination, which may include a physical exam and possibly imaging studies or a colonoscopy, to determine the exact cause of the hard lump and associated pain.

In the meantime, there are some self-care measures you can consider to alleviate discomfort. These include:
1. Warm Sitz Baths: Soaking in warm water can help reduce pain and inflammation in the anal area.

2. Over-the-Counter Pain Relief: Nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen can help manage pain and swelling.

3. Dietary Adjustments: Increasing fiber intake can help prevent constipation, which may reduce strain during bowel movements and alleviate pressure on the anal area.

4. Avoiding Straining: When using the bathroom, try to relax and avoid straining, which can exacerbate symptoms.

In conclusion, while there are several potential causes for a hard lump near the anus, it is essential to consult with a healthcare professional for an accurate diagnosis and appropriate treatment. Early intervention can help prevent complications and improve your quality of life.

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