Please you (patients) before the ultrasound must pay attention to diet, science to see the doctor not to spend money! (1) liver, gallbladder, pancreas and spleen, abdominal cavity, intestines, retroperitoneal examination before dinner can only and must eat thin rice at the same time can eat salt small dishes, can not eat other things (including meat and vegetable oil dishes, milk, eggs, flour, sugar, fiber dishes), followed by 8 – 12 hours of fasting and water, try not to talk and early discharge of stool waiting for the examination. (2) Ureter, bladder, prostate seminal vesicles, uterine adnexa, early pregnancy, pelvis, lower abdomen, appendix 1 to 2 hours before the examination need to drink about 1000 ml of water and then hold urine (can not solve urine) to go to the examination.