Anal Cancer

What is anal cancer?

From: MedlinePlus, National Library of Medicine

Your anus is the opening at the end of your large intestine. It is where stool (poop) leaves your body. The anus is formed partly from your outer layers of skin and partly from your intestine. Anal cancer is a type of cancer that forms in the tissues of your anus.

Who is more likely to develop anal cancer?

From: MedlinePlus, National Library of Medicine

Anyone can get anal cancer, but you are more likely to develop it if you:

• You have an infection with high-risk HPV, especially if you have certain types. Most anal cancers are related to HPV infection.
• Have a weakened immune system, from conditions such as HIV or because of medicines you need to take after an organ transplant.
• Have had vulvar, vaginal, or cervical cancer.
• Have many sexual partners.
• Have anal sex.
• Smoke cigarettes.

What are the symptoms of anal cancer?

From: MedlinePlus, National Library of Medicine

The signs and symptoms of anal cancer may include:

• Bleeding from the anus or rectum
• A lump near the anus
• Pain or pressure in the area around the anus
• Itching or discharge from the anus
• A change in bowel habits, such as narrower stools, having to go more often, or bowel incontinence

How is anal cancer diagnosed?

From: MedlinePlus, National Library of Medicine

To find out if you have anal cancer, your provider:

• Will take your medical history, which includes asking about your symptoms.
• Will ask about your family health history.
• May do a digital rectal examination (DRE). A DRE is an exam of the anus and rectum. For the exam, your provider will insert a lubricated, gloved finger into the lower part of your rectum to feel for lumps or anything else that seems unusual.
• May order tests that examine the anus and rectum, such as: An anoscopy, an exam of the anus and lower rectum using a short, lighted tube called an anoscope. There is also a type of anoscopy called a high-resolution anoscopy. It uses a special magnifying device called a colposcope along with the anoscope to view these areas. A proctoscopy, a procedure to look inside the rectum and anus using a thin, tube-like instrument with a light and a lens. An endo-anal or endorectal ultrasound, a procedure in which an ultrasound probe is inserted into the rectum.
• May do a biopsy during an anoscopy or proctoscopy.

What are the treatments for anal cancer?

From: MedlinePlus, National Library of Medicine

The treatments for anal cancer include radiation therapy, chemotherapy, and surgery. Which treatment you get will depend on how advanced the cancer is, your overall health, and your preferences.

Can anal cancer be prevented?

From: MedlinePlus, National Library of Medicine

You may be able to lower your risk of getting anal cancer by getting an HPV vaccine and not smoking. Contact your provider if you need help quitting smoking.

It is currently not known if using condoms can prevent anal HPV infections. But using latex condoms every time you have sex can help prevent HIV, a risk factor for anal cancer. And they also help prevent other sexually transmitted infections (STIs). If your or your partner is allergic to latex, you can use polyurethane condoms.

If you are an adult with HIV, it's important to get an anal cancer screening every year. The screening checks for anything that seems unusual, such as lumps, burning, and precancer cells (cells that could turn into cancer). The screening will include a digital rectal exam. If anything unusual is found, you will have an anoscopy or high resolution anoscopy.

Which doctor should you see?

The suggested department for discussing Anal Cancer is Oncology, with a oncologist and relevant organ specialist as the relevant type of clinician. General physician / Family Medicine; paediatrician for children. Referral depends on symptoms.

Additional services that may be relevant, depending on the findings, include: Relevant organ specialist / Surgical Oncology as indicated.

This is an editorial referral starting point. The appropriate clinic depends on the person’s age, symptoms, previous diagnosis and local services. The first clinician can decide whether another specialty or a team is needed; a department label does not confirm the diagnosis.

How to prepare for an assessment

Bring a short timeline of the main symptoms: when they first appeared, whether they are constant or episodic, what seems to change them, and how they affect daily activities. Include previous reports, discharge summaries, current medicines and supplements, allergies, and any relevant family history. A dated record is more useful than trying to match every feature in an online article.

Ask the clinician what is already established and what remains uncertain. If a test is suggested, ask what question it answers, what its limitations are and how the result would change the next step. The information here is not an instruction to arrange every possible test. In children, bring growth, developmental and school information if it is relevant to the concern.

• Has the exact tumour type been confirmed, and is staging relevant?
• What is the goal of each proposed treatment option?
• How will side effects, daily function and supportive care be addressed?

Treatment discussions and follow-up

Where the source describes treatments, these are an overview of possible care, not a prescription for an individual. Ask which option applies to the confirmed diagnosis, what benefit is expected, what adverse effects to watch for and how progress will be assessed. Availability, approvals and local practice can differ from the country described in the source.

Before leaving the appointment, clarify the next review date, who will communicate results, and whom to contact if the situation changes. Discuss difficulties with sleep, work, school, mobility, eating or emotional wellbeing when these are relevant. Practical support may require coordination between the treating clinician and other services.

The collected references do not establish a complete prevention or long-term outlook section for this entry. Missing information should not be interpreted as proof that prevention is impossible or that a particular outcome is inevitable. Ask what is known for the exact subtype, stage and personal circumstances, and which uncertainties remain.

When to seek emergency help

Severe breathing difficulty, collapse, new stroke-like symptoms, a seizure that is prolonged or repeated without recovery, uncontrolled major bleeding, or an immediate risk of self-harm require emergency help. In India, call 112 or reach the nearest emergency department. This is a general, non-exhaustive warning list; it is not a condition-specific triage tool.