According to the theory of Chinese medicine, heavy accumulation of wind-heat invades the lungs. They are already affected by endogenous heat. Both exogenous and endogenous evils act on the lungs and render them incapable of keep qi pure and descendant; in turn, heat accumulates and blood stagnates, and lung abscess ensues. Clinically, there are three main syndrome differentiations for lung abscess. Integration of Chinese medicine and western medicine would be a good choice for this disease. When treating lung abscess, Chinese doctors will take everything into consideration, including the following conditons.
1. Anaerobic bacteria: post streptococcus, bacteroides species.
2. Microaerophillic streptococcus
3. Some aerobic bacteria like staphylococcus, haemophilus, and klebsiella.
4. Some fungi like Candida and aspergillus
5. Parasites like Entamoba histolytica

Factors which increase the risk of lung abscess
1. Alcoholism
2. Periodontal disease,
3. Seizure disorder
4. Dysphasia
5. Pneumonia
6. Immunosuppressive diseases
7. Chronic lung diseases