A depressed parietal bone is likely to be a congenital developmental abnormality or a collapse caused by an acquired trauma. The patient’s symptoms, such as dizziness, nausea, vomiting, etc., should be observed after the collapse. If these symptoms occur, a CT examination is needed to observe whether there is a reduction in brain volume and whether brain herniation is formed. If brain herniation is formed, surgery is needed in time to avoid further aggravation of brain herniation that threatens the patient’s life. If it is a physiological depression and the patient does not have any other symptoms, it needs to be closely observed and does not require special treatment, but may be a little worse in terms of aesthetics and does not affect the function of the body. Head surgery is generally more sophisticated and requires minimally invasive or skull repair treatment.