Usually, the ultrasound items that require patients to hold their urine are urological and gynecological examinations, and the methods of holding urine quickly are as follows: 1. Patients should make an appointment to reserve sufficient time; 2. Drinking water: patients can drink warm boiled water and walk around more. Patients who are not accompanied by diabetes can choose fruit juice, soymilk and other drinks with sweet flavors, and drinking sweet drinks is more effective than drinking plain water. For patients in Hainan, coconut is the best gift. Coconut water is a natural drink and has a certain diuretic effect. Most patients drink half to one coconut and wait for about 20 minutes, then the urine is already enough. For patients with urgent conditions who do not have urine, when they need to be examined, they can choose a vaginal ultrasound or anal ultrasound, which is more convenient as they do not have to hold their urine.