ANAL PAIN
CAUSES, SYMPTOMS & DIAGNOSIS OF
ANAL PAIN
Private COLORECTAL & ANAL Pain Specialist
Mr Peter Asaad provides expert assessment for patients experiencing anal pain, taking a detailed history, performing a thorough examination, and arranging appropriate investigations where needed.
Anal pain has many possible causes, from haemorrhoids and anal fissures to muscle spasm and nerve-related conditions. By identifying the underlying cause, Mr Peter Asaad can recommend the most appropriate treatment, whether conservative, surgical, or referral to another specialist.
SYMPTOM
What is anal pain?
Anal pain refers to any pain or discomfort in or around the anus (back passage). It may be sharp or dull, constant or intermittent, and can occur during bowel movements, when sitting, or at other times.
Anal pain is often accompanied by other symptoms such as bleeding, a lump, swelling, itching or discharge. The combination of symptoms usually helps identify the underlying cause and determine whether further investigation or treatment is needed.
Causes
Common causes of anal pain
Anal pain can have many different causes. Some conditions are minor and settle with simple treatment, while others require further investigation or specialist care.  Common causes of anal pain include:
Haemorrhoids are swollen blood vessels around the anus. They usually cause bleeding or a lump, but can become painful if they thrombose (develop a blood clot) or prolapse.
An anal fissure is a small tear in the lining of the anus. It typically causes severe sharp pain during and after opening your bowels, often with a small amount of bright red bleeding
An anal fistula is a small tunnel connecting the inside of the anal canal to the skin. It typically causes recurrent pain, swelling & discharge, particularly after a previous abscess.
A perianal abscess is a collection of infection beside the anus. It usually causes constant, worsening pain with swelling, and may be associated with fever or feeling unwell.
Conditions such as Crohn’s disease can affect the anus and rectum, causing pain, fissures, abscesses or fistulas alongside bowel symptoms.
Anal pain may be caused by spasm of the pelvic floor or nerve irritation around the anus and often benefits from assessment rather than surgery.
When is anal pain an emergency?
Although many causes of anal pain are not serious, persistent or recurrent symptoms should be assessed to identify the underlying cause and exclude more significant conditions.
If you are concerned that your symptoms may represent a medical emergency, you should attend your nearest Emergency Department or call 999 without delay.
Seek urgent medical attention if your anal pain is:
- Severe and rapidly worsening
- Associated with fever or feeling generally unwell
- Accompanied by a painful swelling around the anus
- Associated with heavy rectal bleeding
- Following a significant injury to the anus or pelvis
- Accompanied by difficulty controlling your bowels or passing urine
When should anal pain be investigated?
A specialist assessment can often identify the cause through a careful history and examination. Where appropriate, further investigations such as blood tests, scans or a colonoscopy may be recommended.
You should consider seeing a specialist if your abdominal pain:
- Pain lasting more than a few weeksÂ
- Recurrent episodes of anal painÂ
- Severe pain that is affecting your daily activitiesÂ
- Pain associated with rectal bleedingÂ
- A persistent lump or swelling around the anusÂ
- Discharge, pus or persistent leakageÂ
- A change in your bowel habitÂ
- Unexplained weight lossÂ
- A personal or family history of bowel cancer or inflammatory bowel diseaseÂ
- Symptoms that do not improve despite treatment
Diagnostics
How is anal pain investigated?
The most appropriate investigations depend on your symptoms, examination findings, age and any associated risk factors. Many causes of anal pain can be diagnosed during a consultation, while others may require further tests.
Your consultation begins with a detailed discussion about your symptoms, including the location, severity and duration of your pain, together with any associated symptoms, previous medical conditions, medications and previous anal surgery.
When appropriate, a thorough examination of the anus helps identify areas potential external conditions such as anal fissures, anal fistulas or haemorrhoids.Â
Blood tests may be arranged to look for signs of infection, inflammation, anaemia, liver or kidney problems, or abnormalities of the pancreas and other organs.
Depending on your symptoms, imaging may include an ultrasound scan, CT scan or, less commonly, an MRI scan. These investigations help identify conditions affecting the areas around the anus.Â
If appropriate, a flexible sigmoidoscopy or colonoscopy may be recommended to examine the bowel, particularly if you have rectal bleeding, a change in bowel habit, unexplained weight loss or other symptoms suggesting bowel disease.
Following your assessment and any necessary investigations, the findings will be discussed with you and a personalised management plan agreed. This may involve treatment, surgery, reassurance or referral to another specialist where appropriate.
Treatment
Non Surgical Treatment Options
Not all causes of anal pain require surgery. Many conditions can be managed successfully with simple treatments, particularly when diagnosed early.
The most appropriate treatment depends on the underlying cause of your symptoms. Following assessment, a personalised treatment plan can be recommended based on your diagnosis.
Treatment may include:
- Increasing fibre and fluid intakeÂ
- Stool softeners where appropriateÂ
- Pain reliefÂ
- Prescription creams or ointmentsÂ
- Antibiotics for selected infectionsÂ
- Pelvic floor physiotherapy for muscle-related painÂ
- Medical treatment for inflammatory bowel diseaseÂ
Common conditions treated:
While many causes of anal pain can be managed without an operation, some conditions are more likely to benefit from surgical treatment.
About
Mr Peter Asaad
Mr Peter Asaad is a Consultant General and Colorectal Surgeon with over 17 years’ experience in the NHS.
He specialises in colorectal surgery and the treatment of bowel conditions, alongside common general surgical problems such as hernias and gallstones. His practice includes advanced keyhole techniques for colorectal cancer and the management of conditions such as haemorrhoids, fissures and fistulas.
He sees patients within Wrightington, Wigan and Leigh NHS Trust and privately across Manchester and Cheshire.
Mr Asaad provides clear, pragmatic advice and a straightforward approach to treatment, ensuring patients understand their options and can proceed with confidence.
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Frequently Asked Questions
These are some of the most common questions patients ask about unexplained anal pain. As new questions arise, this section will be updated to provide clear and relevant information.
What causes anal pain?
Anal pain has many possible causes. Common conditions include haemorrhoids (piles), anal fissures, perianal abscesses and anal fistulas. It may also be caused by inflammatory bowel disease, muscle spasm, nerve-related conditions or, less commonly, anal or rectal cancer. Identifying the underlying cause is the key to recommending the most appropriate treatment.
Can anal pain occur without haemorrhoids or a fissure?
Yes. Although haemorrhoids and anal fissures are common causes of anal pain, symptoms can also be caused by infection, inflammatory bowel disease, muscle spasm, nerve-related conditions and, less commonly, anal or rectal cancer. This is why persistent or recurrent anal pain should be properly assessed rather than assuming it is caused by piles.
Why do I have anal pain when sitting?
Pain when sitting is often caused by inflammation or swelling around the anus. Common causes include thrombosed haemorrhoids, anal fissures, perianal abscesses and some muscle-related conditions. A specialist assessment can help determine the underlying cause.
What causes anal pain at night?
Anal pain at night may occur with several conditions, including anal fissures, muscle spasm around the anus and some inflammatory conditions. Although occasional episodes are not usually serious, persistent or recurrent symptoms should be assessed.
Can haemorrhoids cause anal pain?
Yes. Although haemorrhoids often cause painless rectal bleeding, they can become painful if they thrombose (develop a blood clot), become swollen or prolapse outside the anus.
Can an anal fissure heal on its own?
Yes. Many acute anal fissures heal with simple measures such as avoiding constipation, keeping stools soft and using prescribed creams where appropriate. If symptoms persist, further treatment such as Botox injections or surgery may be recommended.
When should I worry about anal pain?
You should seek medical advice if the pain persists, keeps returning, is severe, is associated with bleeding, swelling, discharge or a change in bowel habit, or if you develop fever or feel generally unwell.
Can bowel cancer cause anal pain?
Most people with anal pain do not have bowel cancer. However, persistent pain associated with rectal bleeding, a change in bowel habit, unexplained weight loss or a persistent lump should be assessed to exclude a more serious underlying condition.
What tests may be needed?
Many causes of anal pain can be diagnosed during a consultation. Depending on your symptoms, further investigations may include blood tests, CT or MRI scans, flexible sigmoidoscopy or colonoscopy.
Should I see a specialist if the pain keeps coming back?
Yes. Recurrent anal pain should not be ignored, particularly if symptoms are becoming more frequent or severe. Identifying the underlying cause allows the most appropriate treatment to be recommended and helps prevent ongoing symptoms or complications.