The bladder in color ultrasound bladder wall thickness of about 1~3mm, the bladder urine is anechoic area. The bladder is a vertebral-shaped sac-like muscular organ for storing urine, located in the pelvic cavity, and its neck is close to the upper edge of the pubic symphysis. The bladder wall can be divided into the plasma membrane layer, muscular layer, submucosal layer, and mucosal layer, and the capacity of the bladder in adults is 300-500 ml. Normal bladder image under color ultrasound: urine in the bladder is non-echoic dark area, when full, the bladder wall can be seen as smooth, no obvious bulge, high-resolution instruments can show the bladder of the various levels of structure, the normal thickness of the bladder wall of 1~3mm, urine filling bladder wall thinning. To summarize, if there are bladder diseases, you should consult a doctor in time.