The full name of right renal separation is right renal pelvis separation, meaning that the width of the right renal pelvis is more than 1cm.
Right renal pelvis separation is usually found in ultrasound examination, and the width of the renal pelvis in normal adults is within 1cm, if the width of the renal pelvis is more than 1cm, it shows separation.
If the separation of the right renal pelvis is not more than 1.5cm, and there is no further separation after several reviews, and it is not accompanied by other organic lesions, this condition usually belongs to physiological separation, which may be caused by excessive urine in the bladder, and with the discharge of urine, the separation will disappear.
However, if the patient has kidney stones or renal pelvis stones, the stones block the ureter, resulting in poor urine drainage, may also appear in the right renal pelvis separation phenomenon, which is usually pathologic, and need to be actively treated.
To summarize, if the examination finds that the renal pelvis is separated, it should be followed up regularly and prevented and treated under the guidance of professional physicians.