Question: how long should you not pee before an ultrasound?
Answer: A combined abdominal and pelvic ultrasound is used to look at the organs in your abdomen and pelvis. Don't eat solid food for 6 hours before your ultrasound. Drink 4 to 6 (8-ounce) cups of water 1 hour before your ultrasound. Don't urinate (pee) before your ultrasound.