Spleen deficiency can be caused by lifestyle factors, dietary factors, mental factors, disease causes, congenital factors and other ways. 1. Lifestyle factors: prolonged overwork, depletion of qi and blood, damage to the spleen and stomach, leading to spleen deficiency. 2. Dietary factors: uncontrolled and irregular diet, or over-eating cold and raw food, damaging the spleen yang. 3. Mental factors: too much thinking, depletion of qi and blood, or emotional depression, liver qi stagnation, liver qi against the spleen, leading to spleen deficiency. 4. Disease factors: prolonged illness, evil qi depletes positive qi, leading to spleen deficiency. 5. Innate factors: Spleen deficiency can be congenital weakness of the spleen and stomach. If there is any manifestation of spleen and stomach weakness, one should go to the hospital and consult the clinician to determine the treatment plan.