Normally, the normal value of renal pelvis separation is less than 4mm.
Normally, the separation of renal pelvis is less than 4mm. when the separation of renal pelvis is 4-9mm, it is mild hydronephrosis, 9-14mm is moderate hydronephrosis, and more than 14mm is severe hydronephrosis. If the hydronephrosis is prolonged, it may affect the renal function and need to be treated in time.
Hydronephrosis is mainly caused by urinary tract obstruction, which may be caused by urinary tract stones, congenital ureteral development abnormality, urinary tract infection, and swelling compression. When the urine is not discharged well and accumulates in the renal collecting system, it causes hydronephrosis, which leads to separation of the renal collecting system.
If the patient finds the separation of renal pelvis, it is recommended to go to the regular hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.