Methods that can quickly hold urine include drinking large amounts of water, intravenous rehydration, oral diuretics, and injection through a urinary catheter. 1. Drinking a lot of water: this method is the most commonly used, such as drinking about 1000ml of water within half an hour, drinking a lot of water in a relatively short period of time can increase the amount of fluid in the body, the renal filtration enhances and then produce urine. 2. Intravenous rehydration: If you can’t drink a lot of water for various reasons, intravenous rehydration is also an option, which can also increase the amount of fluid and then increase the amount of urine. 3. Oral diuretics: Furosemide is commonly used to produce more urine in about half an hour after oral intake, and the drug should be used in accordance with medical advice. 4. Injecting through the urinary catheter: If none of the above methods are feasible, then saline can be injected into the bladder through an indwelling catheter, which can also achieve the purpose of holding urine quickly. It is recommended to go to a regular hospital, you can choose the appropriate method according to your own conditions and doctor’s advice.