A sitz bath is a shallow, warm-water soak that covers only the hips and buttocks. You can make one in a standard bathtub by filling it with a few inches of water, or you can buy a plastic basin that fits over a regular toilet. Both methods are simple, but they work differently depending on your needs and setup.
What Is a Sitz Bath and Why Use One?
A sitz bath targets the perineal area — the space between the genitals and the anus. The water level stays low, so only the pelvic region is submerged. This is different from a full bath, where your whole body is in the water.
People use sitz baths for relief after childbirth, for hemorrhoids, for anal fissures, or after certain surgical procedures. The warmth can soothe irritated tissue, and the gentle soaking helps keep the area clean. Some clinicians also recommend them for conditions like prostatitis or pelvic pain, though the evidence for those uses is less consistent.
Warm water increases blood flow to the area, which may promote healing. The water temperature matters. It should feel comfortably warm, not hot. Water that is too hot can irritate the skin or cause burns, especially in areas with reduced sensation.
How To Make a Sitz Bath in a Bathtub
The bathtub method is the most accessible because most homes already have one. You do not need any special equipment.
Start by cleaning the tub thoroughly. You do not need to sterilize it, but soap and hot water are important. Rinse well so no soap residue remains.
Fill the tub with just enough warm water to cover your hips when you sit down. For most adults, that is about 3 to 5 inches of water. The water should reach your lower belly but stay well below your waist.
Test the temperature with your wrist or elbow, not your hand. Hands can tolerate hotter water than the perineal area can. The water should feel warm but not uncomfortable. Aim for roughly body temperature to slightly above — around 98°F to 104°F if you want a reference point.
Sit in the tub with your knees bent and your feet flat on the floor of the tub. Relax your pelvic muscles. Some people find it helpful to bend forward slightly. Stay in the water for 10 to 15 minutes.
When you finish, stand up slowly. Dizziness can happen if you have been sitting in warm water. Pat the area dry with a clean towel. Do not rub, because rubbing can irritate sensitive tissue.
How To Make a Sitz Bath With a Basin
A sitz bath basin is a plastic tray that fits over a standard toilet bowl. You can buy one at most drugstores or online. They are inexpensive and reusable.
Place the basin on the toilet seat according to the manufacturer’s instructions. Most basins have a notch in the front or back to fit around the toilet. Fill it with warm water while it is in place. Do not fill it before placing it, because it will spill.
Use the same temperature guidelines as the bathtub method. Warm, not hot. Sit on the basin and relax. The water should cover your hips and buttocks but not rise above your lower belly.
Soak for 10 to 15 minutes. When you finish, stand up and remove the basin. Empty it into the toilet and rinse it with clean water. Some basins come with a small pump or tube that allows you to keep the water moving, but this is optional.
The basin method uses less water than a bathtub. It is also easier to set up and clean up. For people with limited mobility, the basin may be easier because it sits at toilet height.
What To Add to the Water
Plain warm water is the safest and most studied option. You do not need to add anything else.
Some people add Epsom salt, baking soda, or herbal preparations. The evidence for these additives is limited. Epsom salt is sometimes used for muscle soreness, but no large clinical trials have confirmed that it improves perineal healing. Baking soda may change the pH of the water, but whether that helps or hurts depends on the condition.
If you want to try an additive, use a small amount — about 1 to 2 tablespoons of Epsom salt or baking soda per bath. Do not use soaps, bubble baths, or essential oils. These can irritate the area and make symptoms worse.
No clinical guidelines currently exist for adding anything other than plain water to a sitz bath. If you are unsure, skip the additives.
How Often Should You Take a Sitz Bath?
The frequency depends on the reason you are taking one. For acute symptoms like a painful hemorrhoid flare-up, two to three times per day is common. For postpartum recovery, many clinicians suggest once or twice daily for the first week or two.
Each session should last 10 to 15 minutes. Longer is not better. Prolonged soaking can soften the skin too much and delay healing.
If your symptoms do not improve after several days of regular sitz baths, or if they get worse, contact a healthcare provider. Sitz baths are a comfort measure, not a treatment for an underlying condition. They can relieve symptoms while your body heals, but they do not cure infections, shrink hemorrhoids permanently, or close fissures on their own.
Risks and Precautions
Sitz baths are generally safe for most people. There are a few situations where you should be more careful.
If you have diabetes or any condition that affects sensation in your pelvic area, you may not feel if the water is too hot. Use a thermometer or have someone else test the temperature. Water burns in this area are serious and can be slow to heal.
If you are pregnant, sitz baths are usually considered safe in the second and third trimesters. However, you should avoid them in the first trimester if you have any history of overheating, and always check with your obstetrician first. Very hot water can raise your core body temperature, which is not recommended during pregnancy.
If you have recently had surgery, including an episiotomy or hemorrhoidectomy, follow your surgeon’s specific instructions. Some procedures have different rules about when you can soak and what you can add to the water.
If you have an active infection with discharge, fever, or increasing pain, do not rely on sitz baths alone. See a healthcare provider. Soaking will not treat an infection.
Comparison: Bathtub vs. Basin
| Feature | Bathtub | Basin |
|---|---|---|
| Setup | Fill tub with 3-5 inches of water | Place basin on toilet, then fill |
| Water volume | Large | Small |
| Cleanup | Drain and rinse tub | Empty and rinse basin |
| Accessibility | Requires ability to get in and out of tub | Toilet height, easier for limited mobility |
| Cost | No equipment needed | One-time purchase, usually $15-$30 |
| Privacy | Bathroom only | Bathroom only |
Both methods deliver the same therapeutic effect. The choice comes down to your home setup, your mobility, and your preference.
How To Make a Sitz Bath Bathtub and Basin Methods: Key Steps
To summarize the process: clean the container, fill with warm water, sit for 10 to 15 minutes, and pat dry afterward. For a bathtub, use 3 to 5 inches of water. For a basin, fill it while it sits on the toilet.
Use warm water, not hot. Test the temperature on your wrist. Do not add soap or essential oils. Do not soak longer than 15 minutes per session.
Rinse the basin after each use with clean water and let it air dry. If you use the bathtub method, drain the tub and clean it after each session.
Frequently Asked Questions
How long should I sit in a sitz bath?
Ten to fifteen minutes per session is the standard recommendation. Longer sessions can over-soften the skin and delay healing.
Can I use Epsom salt in a sitz bath?
Some people do, but no large clinical trials have confirmed that it improves outcomes. Plain warm water is the safest choice.
How many times a day can I take a sitz bath?
Two to three times daily is common for acute symptoms. If you are not seeing improvement within a few days, talk to a healthcare provider.
Is a sitz bath safe during pregnancy?
Generally yes in the second and third trimesters, but check with your obstetrician first. Avoid very hot water because it can raise your core body temperature.

