The cause of unilateral polycystic renal dysplasia is mostly genetic. Unilateral polycystic renal dysplasia is a hereditary disease, and most patients have dominant inheritance. Early symptoms are usually not obvious, with the development of the disease, palpation can be palpated in the abdomen can touch the mass. Some patients also have elevated creatinine and blood pressure. If unilateral polycystic renal dysplasia is not actively controlled, renal insufficiency may occur. In patients with unilateral polycystic renal dysplasia, in addition to the presence of polycystic cysts in the kidneys, other parts of the body may also have polycystic changes, such as subarachnoid cysts, polycystic liver and other conditions. When unilateral polycystic renal dysplasia occurs, it is necessary to consult a regular hospital, choose a reasonable treatment plan under the guidance of a professional doctor, and treat it actively.