Bladder hypoechoic is usually found when doing urinary ultrasound, in the clinical causes of bladder hypoechoic bladder diverticulum, bladder cysts, as follows: 1, bladder diverticulum: is the bladder mucosa through the muscle layer of the bladder wall to the outside of the bladder caused by the expansion, divided into congenital and secondary, bladder diverticulum is usually no obvious symptoms, if there is obstruction, urinary retention, infection, stones, can appear urinary difficulties, hematuria, urinary frequency, Urinary urgency and other symptoms, the treatment is mainly to relieve obstruction, control infection, if the bladder diverticulum is large, can be surgically removed bladder diverticulum; 2, bladder cysts: is caused by enlargement of the end of the ureter, smaller bladder cysts do not need treatment, cysts are larger can lead to urinary reflux, resulting in the ipsilateral lumbar pain, the treatment of the bladder cysts to do transurethral cystectomy, post-operative recovery is also relatively fast, once there is bladder Hypoechoic, need to do cystoscopy to confirm the diagnosis.