Water travels up into the bladder from the tub, so whatever substances are in the water travel to the bladder. Showers are the best choice for daily hygiene. When young girls clean themselves after urinating or having a bowel movement, they should be taught to wipe from front to back. If feces are left in contact with the skin, their bacteria can travel up the urethra into the bladder. This is especially true if the child wipes the feces toward the urethra.
Proper hygiene is very important.
Urine is normally slightly acidic in nature. This acidic urine helps to keep bacteria from growing in the bladder. Certain substances can irritate the bladder and cause a sense of needing to empty the bladder frequently. Such substances include carbonated beverages and caffeine. Other substances such as chocolate and citrus products also irritate the bladder and should be avoided as well.