The spleen and stomach are the foundation of the later day, the source of qi and blood biochemistry. Weakness of the human body's spleen and stomach can be manifested in three main types: spleen and stomach qi deficiency, spleen and stomach yin deficiency, and spleen and stomach yang deficiency.

Spleen and stomach qi deficiency is mainly manifested by deficiency of qi, deficiency of qi not taking in, and clinically it is mainly manifested by reduced diet, abdominal distension after eating, tiredness and weakness, shortness of breath and laziness, and yellowish complexion. If the spleen is deficient and does not regulate, prolapse of the anus and gastroptosis may occur. If the spleen does not regulate blood, blood in the stool, leakage, etc. can occur. You can use Si Jun Zi Tang to replenish qi, benefit qi and strengthen the spleen, and use Zhong Yi Qi Tang to replenish the sunken middle qi.

Yin deficiency of the spleen and stomach is mainly manifested by insufficient fluid, dry mouth and throat, low-grade fever, night sweating, heat in the hands and feet, and dry stools. It can be treated with Beneficial Stomach Soup.

Yang deficiency of the spleen and stomach is mainly manifested by yang deficiency and fear of cold, which can be seen as: reduced diet, watery mouth, cold pain in the abdomen, prolonged diarrhea, etc., and women's leucorrhea is scanty and cold pain in the abdomen, with pale tongue, white moss, and slow pulse. The patient can use Lizhong Pill to warm up the middle and get rid of the cold.