Anal Pain: Causes, Symptoms, and When to See a Doctor - Surgery

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Hello Dr.
Ke: Sometimes after standing or sitting for a long time, or after taking a shower, I experience significant pain in my anus, and there seems to be a swelling in one area.
It usually resolves on its own.
What could this condition be? Since the pain is not persistent and the swelling goes down, if I visit a doctor when I am asymptomatic, will the doctor be able to diagnose it? Thank you!

Ling, 20~29 year old female. Ask Date: 2005/12/24

Dr. Ke Fangxu reply Surgery


Hello: In response to your question, anal pain is often caused by anal fissures, with swelling and tenderness commonly occurring at the posterior or anterior aspects.
Symptoms may become more pronounced with changes in bowel habits, such as after constipation or diarrhea.
Additionally, acute thrombosed hemorrhoids may present similarly, and a physical examination is necessary to differentiate between the two.
It is advisable to seek medical attention when symptoms are present to facilitate accurate diagnosis and treatment.

Reply Date: 2005/12/24

More Info


Anal pain can be a distressing symptom, and understanding its potential causes, symptoms, and when to seek medical attention is essential for proper management. Based on your description, it seems you are experiencing intermittent pain in the anal area, particularly after prolonged sitting or standing, and you have noticed some swelling that resolves on its own.

Potential Causes of Anal Pain
1. Hemorrhoids: One of the most common causes of anal pain is hemorrhoids, which are swollen blood vessels in the rectal area. They can be internal or external and may cause pain, itching, and sometimes bleeding, especially after bowel movements. The pain often worsens with prolonged sitting or standing.

2. Anal Fissures: These are small tears in the lining of the anus, often resulting from passing hard stools. They can cause sharp pain during and after bowel movements and may lead to a spasm of the anal sphincter.

3. Abscesses or Fistulas: An anal abscess is a collection of pus that can occur due to infection, leading to localized swelling and pain. A fistula is an abnormal connection between the anal canal and the skin, which can also cause discomfort.

4. Skin Conditions: Conditions such as dermatitis or infections can cause localized swelling and pain in the anal area.

5. Proctalgia Fugax: This is a condition characterized by sudden, severe pain in the rectum that lasts for a few seconds to minutes and is often relieved by movement.

6. Other Conditions: Less commonly, conditions such as inflammatory bowel disease (IBD), sexually transmitted infections, or even referred pain from pelvic disorders can cause anal pain.


Symptoms to Monitor
- Pain Characteristics: Note the intensity, duration, and triggers of your pain. Is it sharp, dull, or throbbing? Does it occur during bowel movements, or is it constant?
- Associated Symptoms: Look for other symptoms such as bleeding, itching, changes in bowel habits, or any discharge from the anus.

- Swelling: Monitor the swelling you mentioned. Does it change in size or tenderness?

When to See a Doctor
While it is understandable to be hesitant about seeking medical attention when symptoms are not persistent, it is advisable to consult a healthcare provider if you experience:
- Persistent or Worsening Pain: If the pain becomes more frequent or severe, it warrants evaluation.

- Bleeding: Any rectal bleeding should be assessed by a doctor, as it can indicate more serious conditions.

- Changes in Bowel Habits: If you notice significant changes, such as diarrhea, constipation, or changes in stool appearance, it is important to seek medical advice.

- Signs of Infection: Fever, increased swelling, or discharge could indicate an infection that requires treatment.


Diagnosis Without Symptoms
Regarding your question about whether a doctor can diagnose the issue without symptoms present, it can be challenging. Many anal conditions require a physical examination for accurate diagnosis. If you are asymptomatic, the doctor may not be able to identify the underlying issue. However, if you have a history of anal pain or swelling, it is still beneficial to discuss this with your healthcare provider. They may perform a physical examination, possibly including a digital rectal exam, and recommend further tests if necessary.

In conclusion, while your symptoms may resolve on their own, it is essential to monitor them closely. If you experience any concerning changes or if the pain persists, do not hesitate to seek medical attention. Early intervention can lead to better outcomes and help alleviate discomfort.

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