Spleen deficiency is a term of traditional Chinese medicine, which refers to the dysfunction or weakness of the spleen, resulting in poor blood circulation in the body. There are many reasons for spleen deficiency, including:

1. Irregular diet: eating greasy, spicy and irritating food and drinking a lot often overload the spleen and stomach, leading to indigestion and weak temper.

2. Excessive fatigue: staying up late for a long time, overworking, mood swings, nervousness, etc. Will consume the vitality of the human body and affect the normal function of the spleen and stomach.

3. Poor recovery after illness: weakness after illness, inability to adjust in time, repeated colds, gastrointestinal diseases, etc. , will affect the normal function of the spleen.

4. Poor environment: Poor living environment, long-term exposure to environmental pollution such as air pollution, water pollution and ionizing radiation will also affect people's temper.

In short, there are many reasons for spleen deficiency, including bad living habits, environmental problems, diseases and other factors, which need scientific conditioning and treatment according to specific reasons.