The general survival time of squamous carcinoma in late stage is about six months to one year. Squamous carcinoma originates from epithelial malignant tumors, with some high and some low malignancy. The prognosis is poor if the advanced stage is prone to distant metastasis through blood and lymph. Squamous carcinoma can occur in various tissues and organs, for example, squamous carcinoma of the lung, which usually has liver and bone metastasis in advanced stage, and the median survival period is usually about six months to one year. However, immunotherapy and targeted therapy drugs are available to extend the survival of patients with squamous carcinoma, but the five-year survival is low, generally about 5%. Squamous carcinoma in other parts of the body may have slightly better prognosis, for example, squamous carcinoma in the oral cavity, which lives about 2 years on average in the late stage. Squamous carcinoma on the skin is easy to be detected early and usually develops to the late stage, and the survival time is longer compared with that of visceral squamous carcinoma. However, if it can be detected early, skin tumor cancer may be controlled or even cured, but if it reaches advanced stage, the prognosis is relatively poor.