Exhaustion after pregnancy is caused by plant nerve disorders and imbalance of intestinal flora. After pregnancy, women will secrete a lot of progesterone and estrogen due to the developmental needs of the fetus, which will lead to disorders in the function of the plant nerves. Many pregnant women will experience slow intestinal peristalsis, and the absorption capacity of the intestinal wall cells for gas will be weakened, resulting in exhaustion symptoms. The reaction between harmful bacteria and food residues will produce a lot of gas, resulting in intestinal flatulence and increased exhaustion.