What is the difference between urinary system B ultrasound examination and general B ultrasound?

B-ultrasound examination of urinary system includes kidney, ureter, bladder, prostate, scrotum, testis, epididymis, spermatic cord, etc. In B-ultrasound examination, patients are generally required to hold urine, which can make bladder filling, which is conducive to the accuracy of B-ultrasound examination. B-ultrasound examination outside urinary system does not require patients to drink water. In fact, B-ultrasound machines are the same, all of which do not harm to patients, no radiation, so patients are prepared before examination, which is conducive to the results of examination. That's all for today's question. Thank you very much for listening.