Small cystic changes in the capitate bone are a description of imaging changes that are initially recognized as a bone cyst. The cephalic bone is a piece of bone in the center of the carpal bone, and small cystic changes are considered to be indicative of a mild cyst. A bone cyst is a benign lesion that manifests as a decrease in the bone density of the capitate bone, with cystic fluid occurring internally. Bone cysts are most common in children and adolescents, and preferably occur in the metaphysis of the long bones. They are usually asymptomatic or have mild pain and tenderness. Pathologic fracture may be the earliest symptom and sign, or the lesion may be detected by X-ray radiography. Patients who find bone cysts should take active treatment. Generally speaking, if the cysts are small and there is no local pain or other uncomfortable symptoms, they can be left untreated for the time being. If the bone cyst shows uncomfortable clinical symptoms such as pain and activity limitation, timely treatment is recommended, with surgical scraping and bone grafting as the main treatment. If left untreated, it can lead to pathologic fracture, so bone cysts should be taken seriously enough.