Early mild nephritis is an early kidney lesion caused by infection, drugs, genetics and other causes, divided into primary and secondary, usually there is no clear 15 performance. Primary is seen in the urinary symptoms caused by kidney injury or kidney function damage, secondary can be accompanied by multi-organ damage, the following common manifestations: 1. Urine changes: If the urine becomes dark yellow, or appears to wash water-like changes, or even the production of hematuria may be considered the occurrence of early mild nephritis. At the same time, the appearance of fine foam on the surface of the urine and its presence even after being left for a period of time is mostly proteinuria caused by early mild nephritis, which may also be accompanied by an increase in the number of urination; 2. Back pain: When mild inflammation of the kidneys occurs in the early stage, patients may be accompanied by discomfort or soreness in the kidney area of the waist, which is felt clearly when tapping. In acute nephritis, there may be severe pain in the lower back or abdomen, and sometimes the pain may also radiate along the ureter to the lower abdomen and inner thigh root; 3. Elevated blood pressure: During early mild nephritis, partial impairment of kidney function leads to water and sodium retention, while renin secretion increases relatively, causing intravascular pressure to begin to rise; 4. Edema: When early mild nephritis occurs, mild impairment of kidney function leads to blood volume beginning to The increase in blood volume and the accumulation of water in the blood vessels cause mild edema, starting from the eyelids and face, and the self-conscious fatigue due to their own edema, and in severe cases, generalized edema, or ascites, pleural fluid, etc.; 5. Other: secondary early mild nephritis can be due to other systemic infections, so there can be obvious inflammatory reactions, such as occasional non-cold fever, chills, lumbago, abdominal distension, or sore throat, painful urination, etc. and skin changes, etc. Some of the early stages of nephritis may be combined with mild anemia, resulting in patients prone to dizziness, weakness, fatigue, loss of appetite, etc.