When you want to hold urine quickly for an ultrasound, here are some suggestions: 1. 2-3 bottles of 500mL of pure water are preferred, and pure water is generally not restricted according to individual physique (except for severe renal insufficiency). If there is no need for fasting, in addition to drinking water, it is best to eat some food, especially soup, porridge and other liquid food can also help to quickly hold urine. 2, after drinking water to walk around, climb up and down the stairs or slowly squat up, repeat these actions can also accelerate the production of urine. 3, their own conditions allow the case, you can choose to drink tea, sugar water, fruit juice, dessert drinks, etc., these have a diuretic effect. 4, you can also take oral diuretics such as tachyphylaxis tablets, which need to be taken under the guidance of a clinician. 5, you can also retrograde the injection of saline into the bladder via the urethra to fill the bladder for the purpose of holding urine. I hope there is always a method that works for you!