The prostate is a male-specific organ that plays an important role in male sexual function and urination. It is an irregular, spherical structure. During childhood, the prostate is very small, and at puberty when sex hormones are in full swing, the prostate increases to normal, about 20 g. As men age, the prostate can have varying degrees of enlargement after the age of 45, with clinical symptoms appearing mostly after the age of 50. The prostate can be diagnosed by rectal examination, ultrasound, urological x-ray, CT and magnetic resonance imaging. Rectal diagnosis is the most basic method. The length, width and thickness of the prostate on ultrasound examination are around 4 cm, 3 cm and 2 cm respectively. The more common clinical condition is benign prostatic hyperplasia, which occurs in men of varying degrees after the age of 45. The prostate is mainly regulated by androgens and various growth factors, and an imbalance in these actions may be an important cause of prostate enlargement. The examination of prostate enlargement, there is now an international scale of prostate symptoms. The main thing is to assess whether urination is smooth. The actual fact is that you will be able to get a lot more than just a few of the most effective and most effective. In addition, it can be done through rectal examination. The ultrasound can clearly show the size of the prostate. In addition, a urine flow rate test can determine the severity of the obstruction.