Urinalysis does not require fasting. In general, the main tests that require fasting are blood tests for liver function, blood lipid tests, fasting blood sugar tests, etc., but urine routine tests do not need to be performed on an empty stomach. The purpose of routine urine examination is to determine whether there is a urinary system disease. The urine sampled is usually the excreta that is stored in the bladder after being filtered by the kidneys, and fasting or not will not have any effect on the urine. So there is no need for fasting. It is recommended to choose morning urine to ensure that the urine sample is fresh and clean. It is recommended to consult a doctor before performing a routine urine test and to do it correctly under the doctor’s guidance so as not to affect the test results.