Kidney calyx 4mmx3mm strong echo generally refers to the results of ultrasound imaging, mostly suggesting the presence of stones in the body. Kidney calyx 4mmx3mm strong echo is generally considered to be kidney stones, kidney stones is a crystalline material deposited in the kidney, which is due to the increased concentration of impurities in the kidneys, or due to the precipitation of abnormal substances caused by infection, common cystine stones, urate stones, etc., the patient may experience symptoms such as low back pain, painful urination, hematuria. Patients with kidney stones should drink more water and do more exercise to promote downward movement of stones, dilute urine and reduce crystalline precipitation. They can also be treated by extracorporeal shock wave lithotripsy, percutaneous nephrolithotripsy and laparoscopic incision lithotripsy. Therefore, if you have kidney stones, it is recommended to go to the hospital in time and follow the doctor’s instructions according to your condition.