What causes overactive bladder and what are treaments?

Many causes. Oab can be due to bladder irritants like caffeine, tomatoes, or alcohol, but it can also be due to infections, stones, cancer, or neurologic diseases. Be sure to see your doctor for an accurate diagnosis. Oab can be significantly improved by using a bladder diary, avoiding irritants, not over-drinking, and using "bladder retraining" with timed voiding. Medicines are available if needed.