Thongs may look and feel sexier compared to everyday underwear but their anatomically-unfriendly design makes it easier for harmful bacteria of the colon to find their way into the vagina and bladder increasing the risk of infection. Comfortably fitting cotton underwear that properly covers your female anatomy well, including the vagina and rectum, tends to be the best bet for the vagina in the long run. Finding the most comfortable underwear should be every woman’s mission and priority for vaginal health and wellness.
Since sexually active women are most at risk for UTIs, it's always important to take precautions during sex. Anything going near your genital area should be as clean as possible, and that includes penises, hands, mouths, and toys. We're anatomically more prone to bladder infections because of the way the bladder sits right above the vagina. Since the urethra — the tube that drains urine from the body — is right near the vagina, it's easier for unwelcome bacteria to get into the urinary system, leading to a possible infection in the urethra, bladder, or kidneys.
While good hygiene is important, be careful not to "overdo" it by douching. Anything that disrupts the balance of the vagina — feminine products with fragrance, or even douching — you don't want to do because it gets rid of the good bacteria.