What are the preliminary symptoms of hydronephrosis? As many patients with hydronephrosis do not understand their condition, suffering from hydronephrosis can not be treated in time, thus causing great harm. Hydrocele is extremely harmful to health and should be taken seriously. To determine the early symptoms of hydronephrosis, people can be the first to find this disease, and then for the specific symptoms of the disease, take measures to avoid the serious harm caused by this disease. What are the clinical symptoms of early hydronephrosis in patients? 1, hematuria: hematuria is one of the symptoms of hydronephrosis, which is usually microscopic hematuria. And the patient’s hematuria is aggravated after the complication of infection, stone or trauma. 2.Lumbar pain: There are many kinds of lumbar pain, there are pain caused by lumbar and abdominal masses: the specific ones are generally started under the rib cage at first, gradually extending to the lateral abdomen and waist, and the large ones can cross the midline as smooth cystic masses with regular edges and fluctuating sensation, and the pressure pain is not obvious. In addition to the above, patients may also have persistent pain in the lower back, mostly dull pain or swelling discomfort. 3, hypertension: hypertension is also a common symptom of hydronephrosis. Generally, about 1/3 of patients with severe hydronephrosis have hypertension, which is mildly or moderately elevated. It may be due to ischemia of the renal parenchyma caused by compression of the interlobular arteries by the dilated renal pelvis and calyces. 4. Sudden lumbar and abdominal pain with widespread obvious pressure pain with muscle tension: It is clinically found that patients with spontaneous renal rupture in the absence of trauma may have perirenal hematoma and urinary extravasation due to secondary infection causing rupture of the renal pelvis. It is manifested as sudden onset of lumbar and abdominal pain with widespread and obvious pressure pain and muscle tension. 5, alternating oliguria and polyuria: this symptom of hydronephrosis is mostly seen in a part of patients with primary hydronephrosis, usually the mass may suddenly shrink after one large urination and the pain is relieved, and when the urine volume decreases, the mass rapidly increases and the pain worsens. In patients with bilateral hydronephrosis, isolated kidneys or only one functioning kidney, and in patients with severe impairment of renal function, oliguria or anuria may occur. Warm tip: There are many symptoms of early hydronephrosis, in addition to the above points there will also be gastrointestinal symptoms, because the patient has hydronephrosis, urine discharge is blocked, abdominal pain, abdominal distension, nausea, vomiting and other symptoms, after a large amount of water will aggravate the above symptoms. In the treatment of patients need to pay attention to the specific symptoms to choose the right treatment method, so that the treatment effect will be better.