Small cell lung cancer markers generally refer to NES, and the increase may be caused by encephalitis, hepatitis, lung cancer, etc., which requires timely anti-inflammatory and anti-cancer treatment. 1. Encephalitis and hepatitis, if NES is elevated due to benign diseases such as encephalitis and hepatitis, generally the elevation is not very obvious and the situation is not very serious, and timely anti-inflammatory and anti-viral treatments can be taken to recover. For example, encephalitis can be treated with amphotericin B, fluconazole, mannitol and other medicines in time, and the condition can be normalized naturally after improvement. 2. Lung cancer, small cell lung cancer will increase NES greatly, and treatment is needed according to the stage. Early-stage patients need to undergo radical surgical resection in time, while middle and late-stage patients need to undergo radiotherapy, chemotherapy and other treatments.