After intravesical treatment: precautions at home

After chemotherapy such as mitomycin, or BCG, has been placed into the bladder, the medicine or live bacteria leave the body in your urine over the following hours. Simple toilet precautions protect your skin and the people you live with during that time. The usual advice is to sit down on the toilet to pass urine, including men, so that urine does not splash; to close the lid and flush, sometimes twice; to wash your hands and the genital area with soap and water after passing urine, because the medicine can irritate skin; and to clean any splashes on the toilet seat or floor. You will also usually be asked to drink plenty of fluids after the treatment has been passed out, to help flush the bladder and reduce irritation.

These instructions are often given verbally in a busy clinic, and many people forget them by the time they get home. The length of time precautions are needed depends on the treatment. For many bladder chemotherapy and BCG treatments, the strictest precautions apply for several hours after the treatment, with some advice, such as using condoms during sex, lasting longer. Your team will tell you exactly how long for your treatment, and it is worth asking them to write it down. If you are incontinent or use pads, soiled pads should be sealed in a plastic bag and disposed of as advised. Clothing splashed with urine should be washed separately. Following these steps is quick and easy, and it prevents skin rashes and protects family members, especially children and pregnant women.

Why sitting down matters

Sitting reduces splashing of urine that may contain medicine or bacteria.

Protect your skin

Washing the genital area after passing urine prevents irritation and rashes from the medicine.

Drink fluids after passing the treatment

Extra fluids help dilute urine and reduce bladder irritation, once the treatment has been passed.

It cannot tell you exactly how long precautions last for your treatment. That depends on whether you had chemotherapy or BCG, the medicine used and your team's local guidance. Always follow the instructions you were given.

It also cannot tell you whether symptoms after treatment are expected or a sign of a problem. When in doubt, contact your urology team.

Children and pregnant family members

Keep children away from the toilet area for the precaution period, and pregnant women should avoid cleaning splashes.

Shared toilets

If others use the same toilet, clean the seat after each use during the precaution period.

Public toilets and travel

Where possible, go straight home after treatment so you can follow precautions comfortably.

Sex after treatment

Condoms may be advised for a period after each treatment to protect your partner.

Incontinence

If you leak urine, use pads, change them promptly and seal them in a bag.

Pets

Keep pets away from urine splashes and soiled pads.

Skin reactions

Mitomycin can occasionally cause a rash on the hands or genitals. Report any rash.

Repeat treatments

Follow the same precautions after every treatment in the course.

Why these precautions are simple but important

Bladder treatments work by keeping a concentrated medicine or live bacteria in contact with the bladder lining. When you pass urine afterwards, much of that concentrated solution leaves the body at once. Splashes on the skin can cause irritation or rashes, and contact with other people or surfaces could expose them. Sitting to pass urine, washing, closing the lid before flushing and cleaning splashes are quick habits that prevent these problems. Because the strongest exposure happens in the first hours after treatment, following the precautions carefully during that time protects both you and your family without affecting normal life for long.

Returning to work and daily life

Most people can return to normal activities on the day after bladder treatment, and some on the same day if they feel well. Plan to be near a toilet in the first hours, avoid long journeys straight after treatment if possible, and take extra fluids once the treatment has been passed. If you work, you may prefer to schedule treatments at the end of the week or before a day off.

Planning the journey home

After bladder treatment, you may need to pass urine frequently and urgently. If you have a long journey, plan for toilet stops or wait at the hospital until the first few visits have passed, so you can follow precautions comfortably.

Questions to ask before you leave

Before going home, ask how long precautions last, when to call, and what symptoms are expected after your treatment.

What to do next

Ask for written instructions on how long precautions last, sit to pass urine, close the lid and flush, wash hands and genitals after each visit, clean splashes, drink fluids once the treatment is passed, use condoms if advised, and report fever, clots or severe symptoms promptly.