Digestive
Medicines for Proctitis
Inflammation of the rectum — the last part of the bowel — causing rectal bleeding, mucus, an urgent or frequent need to poo and discomfort; causes range from inflammatory bowel disease to infection or radiotherapy, so treatment depends on the cause, and any new rectal bleeding needs assessment to find out why.
Education and reference only. This explains which medicines are used and why, in plain language — it deliberately contains no doses and is not a substitute for advice from your doctor or pharmacist. Always discuss your own treatment with a qualified clinician, and check the BNF and the product labelling for prescribing detail.
Quick answer
What is Proctitis?
Proctitis means inflammation of the rectum, which is the last part of the large bowel just inside the back passage. Typical symptoms include rectal bleeding, passing mucus, a frequent or urgent need to open the bowels (sometimes with the feeling of needing to go even when there is little to pass), and discomfort or pain in the area.
- How it is treated: Treatment depends entirely on what is causing the inflammation, so the first step is to find the cause — this usually involves an examination and looking inside the back passage and lower bowel, along with tests such as swabs or stool samples where infection is suspected.
- Self-care: Self-care depends on the underlying cause and is best guided by the doctor managing it, but some general measures help.
- When to seek help: Always see your GP if you have new rectal bleeding, are passing mucus, or have a persistent change in how often or how urgently you need to open your bowels — these symptoms always need assessment to find the cause, and should never be assumed to be just piles.
What it is
Proctitis means inflammation of the rectum, which is the last part of the large bowel just inside the back passage. Typical symptoms include rectal bleeding, passing mucus, a frequent or urgent need to open the bowels (sometimes with the feeling of needing to go even when there is little to pass), and discomfort or pain in the area. There are several possible causes, and identifying the right one is central to treatment. One of the most common is inflammatory bowel disease — particularly ulcerative colitis when it is limited to the rectum. Other causes include infections, including some sexually transmitted infections, and inflammation following radiotherapy to the pelvic area (for example as part of cancer treatment). Less often it can be linked to other factors. Because the symptoms — especially bleeding — overlap with those of other bowel conditions, including more serious ones, any new rectal bleeding or change in bowel habit needs to be assessed to find the cause rather than assumed to be harmless.
How it is treated
Treatment depends entirely on what is causing the inflammation, so the first step is to find the cause — this usually involves an examination and looking inside the back passage and lower bowel, along with tests such as swabs or stool samples where infection is suspected. When proctitis is due to inflammatory bowel disease, particularly ulcerative colitis confined to the rectum, aminosalicylates are the usual first-line treatment; these are often given as suppositories or enemas that act directly on the rectum, and are sometimes taken by mouth as well. Corticosteroids — applied to the area or taken by mouth — are used to bring a flare under control when aminosalicylates are not enough. Where the cause is an infection, including a sexually transmitted one, the relevant treatment for that infection is needed instead, and partners may need to be considered. Radiation proctitis is managed in its own way, often with specialist input. Whatever the cause, the aim is to settle the inflammation and relieve symptoms, with follow-up to confirm things are improving.
For this condition, these medicines
Medicine classes used for Proctitis
Each links to a full, dose-free guide — what it is, how it works, who can and cannot use it, side effects, interactions and FAQs.
Symptom checker
Symptoms that can point to Proctitis
Proctitis can be one cause of these symptoms. Each guide explains the other possible causes and the red-flag warning signs that mean you should get urgent help:
Beyond medication
Lifestyle and self-care
Self-care depends on the underlying cause and is best guided by the doctor managing it, but some general measures help. Staying well hydrated and eating in a way that suits your bowel can ease symptoms, and your team may give specific advice depending on the cause. Where proctitis is part of inflammatory bowel disease, taking treatment as prescribed, attending follow-up and not stopping medicines when symptoms settle all help keep it under control. Where an infection is responsible, completing treatment and, for sexually transmitted causes, avoiding sex until advised and involving partners are important. Not smoking benefits bowel and general health. Crucially, never ignore rectal bleeding or assume it is just piles — always get it checked.
When to get help
When to see a doctor
Always see your GP if you have new rectal bleeding, are passing mucus, or have a persistent change in how often or how urgently you need to open your bowels — these symptoms always need assessment to find the cause, and should never be assumed to be just piles. It is especially important not to ignore bleeding from the back passage. Seek prompt medical help if you have heavy rectal bleeding, severe pain in the area or tummy, a fever, or feel generally unwell, as these need urgent assessment. If you already have a diagnosis such as inflammatory bowel disease, contact your team if symptoms flare, are not settling with your usual treatment, or you are becoming unwell. Where there is any possibility of a sexually transmitted cause, a sexual health check is worthwhile.
Not sure how urgent it is? It is always OK to call NHS 111 for advice, day or night.
Answers
Proctitis: frequently asked questions
What medicines are used for proctitis?
It depends on the cause, which is why finding the cause comes first. When proctitis is due to inflammatory bowel disease such as ulcerative colitis affecting the rectum, aminosalicylates are usually the first-line treatment, often given as suppositories or enemas that act directly on the rectum and sometimes taken by mouth as well; corticosteroids — applied to the area or taken by mouth — are used to settle a flare when aminosalicylates are not enough. If an infection is responsible, including a sexually transmitted one, the specific treatment for that infection is needed instead. Radiation proctitis is managed separately. Your doctor decides the right treatment once the cause is clear.
What causes proctitis?
Proctitis — inflammation of the rectum — has several possible causes. One of the most common is inflammatory bowel disease, particularly ulcerative colitis when it is limited to the rectum. Infections can cause it too, including some sexually transmitted infections. It can also follow radiotherapy to the pelvic area, for example during cancer treatment, which is known as radiation proctitis. Because the cause determines the treatment, and because symptoms such as bleeding overlap with other conditions, your doctor will usually examine the area and look inside the lower bowel, and may take swabs or stool samples, to work out what is responsible before starting treatment.
Is rectal bleeding from proctitis serious?
Rectal bleeding is a common symptom of proctitis, but bleeding from the back passage should never be ignored or assumed to be just piles, because it can also be a sign of other conditions, including more serious ones. Any new rectal bleeding needs to be assessed by a doctor to find the cause. Get prompt or urgent medical help if the bleeding is heavy, if you have severe pain, a fever, or feel generally unwell, or if you feel faint or lightheaded. Even when bleeding is light, it is worth seeing your GP so the reason can be identified and the right treatment given.
How is proctitis diagnosed?
Because proctitis can be caused by several different things, the focus is on finding the cause. Your doctor will ask about your symptoms and usually examine the back passage, and will often arrange to look inside the lower bowel using a thin camera to see the inflammation directly and, where needed, take small samples. Where infection is a possibility — including a sexually transmitted one — swabs or stool samples may be taken. These steps help distinguish between inflammatory bowel disease, infection, radiation-related inflammation and other causes, so that the correct treatment can be chosen. Any new rectal bleeding or change in bowel habit is a reason to seek this assessment.
Sources
Where this is drawn from
- NICE CKS: Inflammatory bowel disease.
- Crohn's & Colitis UK.
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