What does B-scan check?

If you need to hold urine before doing B-ultrasound, then, generally do B-ultrasound of the urinary system, or B-ultrasound of the female reproductive system. B-ultrasound of the urinary system mainly checks the patient's kidneys, ureters and bladder conditions. Then B-ultrasound of the female reproductive system mainly checks the uterine fallopian tubes and other manifestations. B-ultrasound examinations of these two systems all need to hold urine. Therefore, patients should drink a lot of water to hold urine before examination. Do not urinate, so that the bladder is fully filled. Then check again.