If you are an elderly male patient who visits the clinic for progressive urination difficulties and increased nighttime urination, you should consider prostate enlargement and complete the following tests: 1. The above examinations can be completed after holding urine: firstly, the location of each examination department will be clarified, and a urine cup will be taken from the urinalysis office; after holding urine, an ultrasound examination will be performed in the ultrasound room, and after the examination, urine will continue to be held in the urine flow rate room to complete the urine flow rate determination, and the urine cup will be taken for urine testing in the laboratory; return to the ultrasound room for another ultrasound examination to clarify the amount of residual urine.