Medical Oncologist
Periods, menopause and hormones
Managing periods during treatment
When white cells are low during chemotherapy, the risk of infection rises, so period products that sit inside the body, such as tampons and menstrual cups, are usually best avoided. Pads changed regularly, gentle washing with plain water and good hand hygiene reduce infection risk. Heavy bleeding, fever or unusual discharge should be reported the same day.
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Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed September 2026, next review due September 2027
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The short answer
How should you manage periods during chemotherapy?
The main aim is to reduce infection risk and cope with changes in bleeding. Chemotherapy often lowers white blood cells, which fight infection, usually in the middle of each cycle. When they are low, bacteria that are normally harmless can cause serious infections. Period products that sit inside the body, such as tampons and menstrual cups, can create small breaks in the vaginal lining and hold bacteria in a warm environment, so they are usually best avoided during treatment, particularly when counts are low. Pads, changed regularly, are generally the safer choice.
Periods may also become irregular, lighter or heavier, so it helps to keep pads at home, in your bag and in the treatment bag, and to use a period diary. Gentle washing with plain water, changing pads every few hours or sooner if soaked, washing hands before and after, and wearing breathable cotton underwear all reduce irritation and infection. Watch for heavy bleeding, which can be dangerous when platelets are low, and for fever, unusual discharge or pelvic pain, which can signal infection. In many homes periods are rarely discussed, but practical questions about pads, hygiene and bleeding are perfectly reasonable to raise with your nurse, and they will answer without embarrassment.
Reusable cloth pads
If you use cloth pads, wash them thoroughly in hot water with soap, dry them completely in the sun, and change them often. Disposable pads may be simpler when counts are low.
Skin care matters
Chemotherapy can make skin more sensitive. Unscented pads and gentle washing reduce soreness and rashes.
Disposal and hygiene at home
Wrap used pads and dispose of them promptly, and keep the bathroom clean, especially in the days after treatment.
Ask your nurse whether tampons or menstrual cups are safe for you, and when your counts are likely to be lowest.Tampons or pads
Period products during treatment
- Disposable pads
- Usually the safest choice during treatment. Change every few hours, choose unscented, and use higher absorbency if bleeding is heavy.
- Reusable cloth pads
- Acceptable if washed very well in hot soapy water and dried completely. Disposable pads may be easier when counts are low.
- Tampons
- Generally avoided during chemotherapy because they can cause small injuries and increase infection risk, especially when counts are low.
- Menstrual cups
- Also usually avoided during treatment for similar reasons. Ask your team before using.
- Period underwear
- Can be useful for light bleeding if washed thoroughly, but may not be enough for heavy bleeding.
- Panty liners
- Helpful for spotting. Change often and choose unscented types.
Not sure whether this applies to you?
Ask an oncologistPractical
Everyday hygiene during low counts
Simple habits that lower infection risk.
Wash gently
Use plain water or a mild, unscented soap on the outside only. Avoid douches, sprays and perfumed washes.
Wipe
- From front to back
- With soft, clean tissue
Change pads regularly
Change every few hours, or sooner if soaked, even when bleeding is light.
Wash hands before and after
Hand washing before and after changing pads prevents spreading bacteria.
Keep handy
- Soap or hand sanitiser
- Spare pads in your bag
Wear breathable underwear
Loose cotton underwear keeps the area dry and reduces irritation and thrush.
Plan for treatment days
Pack pads, spare underwear and wipes in your treatment bag in case bleeding starts.
!
Get help the same day, or immediately, for any of these
Fever or shivering · a bad-smelling or unusual discharge · pain or swelling in the pelvis or genital area · soaking through a pad every hour or two, or passing large clots · bleeding with dizziness or fainting · a rash, sores or blisters in the genital area. Call your chemotherapy helpline or go to the nearest emergency department and say clearly that the person is on chemotherapy.
Being straight with you
What this page cannot tell you
It cannot tell you whether a particular product is safe for you on a particular day. That depends on your counts, your treatment and any other health issues. Your nurse can give personal advice.
It also cannot tell you why your bleeding has changed. Heavy, irregular or unusual bleeding should be checked, because it can have causes other than chemotherapy.
Thrush is more common
Antibiotics and steroids make thrush more likely. Itching and thick white discharge should be checked and treated.
Urine infections
Burning or frequent urination can signal a urine infection. Report it, especially with fever.
Period pain relief
Warmth and rest help. Ask your team before using painkillers, as some affect platelets.
When periods stop
If periods stop, continue contraception and tell your team.
Teenagers
Young people may feel embarrassed to ask. Parents can help by providing supplies and privacy.
Hospital stays
If admitted, ask the ward for pads and a bin. Staff are happy to help.
Travel to treatment
Long journeys may make pad changes difficult. Plan stops and carry supplies.
Cultural practices during periods
Some practices, such as restricted bathing or separate rooms, may affect hygiene. Keep washing and changing pads regularly for safety.
Ask without embarrassment
Nurses answer questions about periods every day.
Why infection risk matters so much
When white cells are low, the body cannot fight bacteria as well as usual, and an infection that starts in the vagina, womb or bladder can spread quickly into the bloodstream. This can become serious within hours. Simple hygiene steps and avoiding internal period products reduce the chance of bacteria entering, which is why nurses emphasise them, especially in the middle of treatment cycles.
Choosing pads for sensitive skin
Chemotherapy can make skin thinner and more easily irritated. Pads with a soft cotton top layer, no added perfume, and breathable backing are often more comfortable. If you notice redness, itching or soreness where the pad sits, try a different type and tell your team if it does not improve.
Supplies and cost
Frequent pad changes add to costs over a long course of treatment. Buying in larger packs, asking whether the hospital can provide pads during admissions, and planning supplies before each cycle can help families manage.
Bleeding on treatment days
If your period arrives on a treatment day, tell the nurse. It will not usually delay treatment, and staff can provide pads and privacy. Let them know if bleeding is heavier than normal, as they may want to check your counts before you go home.
Talking to someone you trust
If you feel shy asking staff about periods, a trusted female relative, friend or nurse can help you ask the questions and get the supplies you need.
What to do next
Use pads rather than tampons or cups during treatment, change them regularly, wash gently and keep hands clean, wear cotton underwear, carry supplies on treatment days, and report fever, unusual discharge or heavy bleeding the same day.
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Commonly believed
Four beliefs about period care during treatment
"Tampons and cups are just as safe during chemotherapy."
They can raise infection risk when counts are low. Pads are usually safer.
"Washing inside the vagina keeps it cleaner."
Douching disturbs natural protection and can cause infection. Wash only the outside.
"Light bleeding means pads can stay on all day."
Change pads every few hours to reduce bacteria and skin irritation.
"Periods are too private to discuss with the team."
Period care affects infection and bleeding risk. Nurses expect these questions.
Questions we are asked
Common questions about managing periods
Should I use tampons or pads during chemotherapy?
Pads are usually safer, because tampons and cups can increase infection risk when counts are low.
Is there an infection risk?
Yes, especially when white cells are low. Regular pad changes, gentle washing and hand hygiene help.
What about during low counts?
Avoid internal products, change pads often, and report fever or unusual discharge straight away.
Can I use cloth pads?
Yes, if washed in hot soapy water, dried completely and changed often. Disposable pads may be easier when counts are low.
How often should I change pads?
Every few hours, or sooner if soaked.
Can I use a menstrual cup?
Usually not during treatment. Ask your team for advice.
What if bleeding is very heavy?
Seek help the same day, and emergency care if soaking pads quickly or feeling faint.
What pain relief can I take?
Ask your team, as some painkillers affect platelets or kidneys.
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Sources
- Cancer Research UK — Periods and chemotherapy
- American Cancer Society — How Cancer and Cancer Treatment Can Affect Fertility in Women
- NHS — Menopause
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
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