Calcification in the brain is usually seen in two cases, and the reasons are as follows: 1, normal physiological phenomenon: some patients can find calcification foci in the brain when performing head CT examination because of headache or head trauma. Most of the brain calcification foci are normal, patients will not have any clinical symptoms, nor any uncomfortable situation, usually do not need treatment, only need regular observation. 2, tumor calcification: some intracranial tumors can produce the phenomenon of calcification, such as common children’s papilloma, and a few glioblastoma, etc., are easy to produce calcification foci, at this time, cranial CT can also appear calcification. The above situation should be treated promptly and symptomatically.