The prostate can be diagnosed by rectal examination, ultrasonography, urological X-ray, CT and magnetic resonance imaging. Rectal examination is the most basic method. 1, rectal finger diagnosis: rectal finger diagnosis is a simple and valuable method to diagnose prostate hyperplasia, which must be performed after emptying the bladder of urine. The actual size of the prostate enlargement can be estimated based on the rectal examination. The finger examination should pay attention to the boundaries of the prostate, size, texture, depth of the central groove, the presence of hard nodes and tenderness. It is also possible to understand the contraction force of the rectal sphincter. The actual fact is that you can find a lot of people who are not only in the marketplace, but also in the marketplace. It is also possible to identify the combination of prostate cancer and prostate stones based on the strength of the reflected wave echo and the presence of acoustic shadows. 3.Urological X-ray: If the following urinary tract obstruction involves renal function, or if the enlarged prostate is not obvious on rectal examination, excretory urography or cystography is feasible. 4.CT and magnetic resonance imaging: it can show the size and shape of the prostate, whether the texture is uniform, whether it protrudes into the bladder, etc. In some patients, if prostate cancer is suspected, it can be used as one of the differential diagnosis methods.