Cranial osteoma is a slow-growing benign tumor of the skull, which usually stops growing when the whole body is skeletally mature. However, the clinical manifestations of osteoma vary depending on the site of growth. Cranial osteoma can occur in any part of the skull, with frontal and parietal bones occurring more frequently and other bones or skull base occurring less frequently, generally single, multiple occurrence is rare, and middle-aged and young people are more likely to develop. According to its pathological characteristics, it can be divided into three types: 1. Dense type This type of osteoma is hard and firm like teeth, mostly occurring in the outer plate of the skull. The osteoma is small in size, usually within 2 cm. The osteoma is loose in texture or completely loose in texture, mostly from the inner plate of the skull, and some of them can be larger and grow into the skull, compressing the brain tissue and producing obvious clinical symptoms. 3. Mixed type has components of the above two types. If the skull osteoma is small in size, there is no conscious symptom, while larger ones may have localized distension and pain or numbness. The main signs are a localized mass with a wide base, no adhesion to the scalp, and no pressure pain. However, if the osteoma is located at the base of the skull or in the frontal, septal, or pterygoid sinuses, symptoms such as headache, vomiting, or pressure on cranial nerves or brain tissue may occur. CT can clearly identify the location, size, shape, and type of osteoma, as well as visualize the compression of the surrounding brain tissue. Once the diagnosis of osteoma is clear, treatment is mainly surgical. However, for small bone tumors that grow slowly or stop growing, observation is the main focus. For faster growth, or cosmetic impact, or the development of associated symptoms, treatment should be surgical. For dense osteomas smaller than 3 cm, bone chisels can be used to remove them. For osteomas larger than 3 cm that involve cranial nerves, post-skull resection and titanium mesh repair are required. If you have any of the above symptoms, please consult a specialist. There is no specific drug treatment, but observation or surgery is possible.