
A sitz bath is a shallow bath of warm water that covers only your bottom and hips. The name comes from the German word for sitting. You can use a small plastic basin that fits over the toilet seat, which is sold in most pharmacies, or simply sit in a clean bath with a few inches of water. Sitz baths are among the most widely recommended home measures for haemorrhoids because they are cheap, free of side effects for most people and can bring quick relief from pain, itching and spasm around the anus. This guide explains how they work, how to take one properly and what they cannot do.
Warm water relaxes the ring of muscle around the anus, known as the internal sphincter. When that muscle is tight, it can add to pain and pressure around swollen haemorrhoids, so relaxing it often eases discomfort. Warmth may also improve blood flow to the area and soothe irritated skin. Sitz baths do not shrink haemorrhoids and they do not cure them. Think of them as a comfort measure that helps while the flare-up settles, alongside softer stools and less straining. Evidence from clinical trials is limited, but NHS and specialist guidance both include warm baths as a sensible step, and many patients tell us it is the one thing that helps straight away.
Clean the basin or bath with mild detergent and rinse well. Fill it with enough warm water to cover your bottom and hips, usually about 8 to 10cm in a bath or up to the fill line on a basin. Sit down so that the water covers the anal area, and keep your knees apart so water can reach the skin. Stay for the time suggested below, then stand up slowly, as warmth can make some people light-headed. Pat the area dry with a clean soft towel, or use a hair dryer on a cool setting if the skin is very tender. Do not rub. If you are using a basin that sits over the toilet, empty and rinse it after each use.
Aim for comfortably warm, about the temperature you would test on the inside of your wrist for a baby, roughly 35 to 38 degrees Celsius. Hot water is not better. It can dry and inflame the skin and make swelling and itching worse, and the skin around the bottom is thin and easy to scald. Check the water with your hand or elbow before you sit. If you have reduced sensation, for example because of diabetes or nerve damage, ask someone to check the temperature or use a bath thermometer.
Ten to fifteen minutes is the usual advice, and most people do not need longer. Soaking for much more than that can make the skin soggy and sore. A common routine is two or three sitz baths a day during a flare-up, with one after each bowel movement being especially useful because it cleans the area gently and relaxes the muscle after passing a stool. Once symptoms settle, you can drop back to once a day or stop. If a sitz bath makes your skin sore or itchy rather than better, cut the time down or stop and see a clinician.
Plain warm water is enough. Many people add Epsom salts or a little ordinary salt, and some find it soothing, but there is no good evidence that it works better than water alone. If you do try it, use a small amount, as strong solutions can sting broken skin. Avoid bubble bath, bath oils, antiseptic liquids, essential oils and scented products, because these can irritate delicate skin and trigger itching. Do not add herbal mixtures sold online unless a clinician advises it. Our guide to hygiene with haemorrhoids explains what to use and avoid when cleaning the area.
Yes. A regular warm bath with the water at about hip height works as well as a sitz basin, and many people find it more comfortable because they can sit fully back. A basin is handy when you do not have time for a full bath, at work or when mobility makes getting in and out of a bath difficult. Showers are fine for cleaning, but they do not give the same soaking effect. A handheld shower on a gentle, warm setting can also be used to rinse the area after a bowel movement.
Warm water is the standard advice for pain and spasm. Some people use a cool compress or ice pack wrapped in a cloth for 10 minutes to reduce swelling, particularly with a painful lump. Never put ice directly on the skin. There is no proof that alternating hot and cold water is better, so there is no need to try it.
Sitz baths fit well with the rest of a home routine. Take the bath first, pat the area dry and then apply any cream or ointment your pharmacist recommends, because skin absorbs products better when it is clean and dry. Our guide to haemorrhoid creams explains what the main products contain. Alongside this, eat enough fibre, drink plenty of fluid, avoid straining and limit time spent on the toilet, as explained in our article on toilet time and haemorrhoids. Our guide on how to shrink haemorrhoids sets out the full list of measures.
For most adults they are safe. Be careful if you have open wounds or recent surgery, as you should follow your surgeon instructions, which often include sitz baths after haemorrhoid surgery. Take care if you have poor circulation, diabetes or reduced feeling in the area, and be careful standing up if you feel dizzy. During pregnancy warm, not hot, baths are generally fine, but check with your midwife. Keep the basin clean to avoid introducing germs, and do not share it. If the skin becomes red, sore or starts to weep, stop and get advice.
See a GP if you have bleeding from the bottom that is heavy, repeated or unexplained, a change in bowel habit lasting more than a few weeks, pain that does not settle after a week or two of home care, or a lump you cannot explain. Bleeding is not always caused by piles, so an examination is the quickest way to be sure. Seek urgent help for heavy bleeding, fainting, severe pain, or fever with swelling around the anus. Our guide on when to see a doctor about haemorrhoids sets out the warning signs.
Sitz baths ease symptoms, but they do not remove haemorrhoids. If symptoms keep coming back or limit daily life, there are in-clinic treatments for internal haemorrhoids that do not need a general anaesthetic. Our overview of non-surgical haemorrhoid treatments compares the main options, and our guide to haemorrhoid treatment costs in the UK sets out typical prices.
At our clinics in Glasgow and London we examine patients and treat internal haemorrhoids with eXroid electrotherapy, which applies a low-dose direct current to the base of the haemorrhoid so that it shrinks over the following weeks, without cutting or a general anaesthetic. Of 116 patients treated at our clinics since January 2025, 84% needed only one session, although individual results vary and some people need a follow-up. A consultation with examination is £365, consultation and treatment on the same visit is £1,095, and a follow-up treatment, if needed, is £795. If what we find is not something we treat, or needs a referral for further tests, we will say so and tell you who to see.
If warm baths and home care are not enough, you do not have to put up with symptoms. Our severity test takes a couple of minutes and can help you think through your symptoms, although it is not a diagnosis. You can read about our procedure or book an appointment at our Glasgow or London clinic.
Haemorrhoid centre London
93 Wardour Street
London, W1F 0UD
Haemorrhoid centre Glasgow
1 Blythswood Square
Glasgow, G2 4AD
Haemorrhoid centre Edinburgh
53 Dundas Street
Edinburgh, EH3 6RS
Tel: 020 3910 1601
Email: info@haemorrhoidcentre.com