The causes of cranial tumors include genetic factors, physical factors, and intake of carcinogenic substances. 1. Genetic factors: some cranial tumors are hereditary, such as chondrosarcoma caused by gene defects, which can be inherited between parents. If family members have a history of cranial tumor, they should have regular medical checkups. 2. Physical factors: besides endogenous causes, external stimuli can also induce cranial tumors. For example, if you are in the environment of ionizing radiation for a long time, it will easily lead to skull tumor. Secondly, skull fracture caused by external force will also increase the chance of skull tumor. 3. Intake of carcinogenic substances: In daily life, if long-term intake of carcinogenic substances, such as pickled food, moldy food, etc., may cause skull tumors. Most of the skull tumors are benign tumors. In the clinic, according to the condition, partial craniectomy, total craniectomy and other programs need to be adopted for active treatment.