While tampons will not cause a UTI, they can cause flare-ups in UTI symptoms. If you suffer from frequent UTIs that commonly flare up during your period while you wear a tampon, try using a sanitary pad instead.

Why do tampons give me UTI?

"The string of the tampon can fold over, and if there's some bacteria from previously urinating that's collected over time, that can sometimes infect the urethra," Dr. Mysore says.

Can you get a UTI from your period?

In women, the urethra is short and straight, making it easier for germs to travel into the bladder. For some women, UTIs relate to changes in their hormonal levels. Some are more likely to get an infection during certain times in their menstrual cycle, such as just before a period or during pregnancy.