Red blood cells are arranged in money strings is the small area of oxygen exchange in the plasma, resulting in oxygen deficiency in the blood, increased plasma viscosity, slow blood flow, aggravating the lack of oxygen supply to tissues throughout the body, so that the entire microcirculation occurs significantly impaired. When the plasma concentration of macromolecular proteins increases the negative charge on the surface of red blood cells decreases, the electrostatic repulsion between red blood cells decreases, thus resulting in an increase in the aggregation of red blood cells, which can easily form bunches or pile up into blocks. To be emotionally stable, maintain a relaxed mood, avoid excessive mental tension, regular life, etc. When the concentration of macromolecular proteins in the plasma increases and the negative charge on the surface of red blood cells decreases, the electrostatic repulsion between red blood cells decreases, resulting in an increase in the aggregation of red blood cells, which can easily form bunches or piles. In patients with multiple myeloma nephropathy, blood smear examination may show red blood cells in the shape of strings of money, and later white blood cells and platelets are also reduced. The red blood cells may interfere with blood grouping. A variety of suboptimal symptoms can also be diagnosed microscopically with lemon, stringy or piles of red blood cells.