Not every item will irritate every woman's bladder, so some experimentation may be needed for you to figure out what triggers your problem. Drink adequate fluids, preferably water, throughout the day. Also, leakage smells worse when urine is concentrated. If you have a problem with urinating at night, restrict fluids after dinner. Add high-fiber foods to your diet to avoid constipation.
Constipation can also irritate the bladder and cause partial obstruction of the urethra.
Along with adequate daily fluid intake, high-fiber foods can prevent constipation. Try not to use laxatives or enemas if you're constipated, though, because their regular use can interfere with normal bowel function. If recommended, lose weight. Weight gain can weaken pelvic muscle tone. Changes in diet and exercise that result in weight loss may help to improve symptoms.