The causes of low total protein in kidney function are as follows: 1. Patients with glomerulonephritis can have low total protein, arising from the following two reasons: 1. Patients with glomerulonephritis lose protein in the urine, resulting in a decline in albumin in the body, and hypoproteinemia can cause low total protein. 2. At this time, patients with glomerulonephritis have edema of the gastrointestinal mucosa, weakened digestive capacity, reluctance to eat, and inability to effectively and timely Replenish protein, can appear low total protein. The total protein can be low because the toxins in the body of the patient with renal failure are high and the body quality is poor, when albumin and globulin are reduced.