One month after the skull repair and subcutaneous effusion can choose conservative treatment or puncture to extract the effusion treatment, if necessary, to repeat the craniotomy treatment. For a small amount of subcutaneous effusion, generally can be self-absorbed, some patients with slow absorption of effusion, can do head massage and physical therapy to promote blood circulation in the scalp, so as to promote the absorption of effusion. For a large amount of subcutaneous fluid, after confirming that it is not a cerebrospinal fluid leak, you can choose to puncture to extract the fluid, and at the same time, put pressure on the bandage, and use antibiotics to prevent infection if necessary. If the effusion originates from a cerebrospinal fluid leak, surgical treatment should be considered to completely remove the subcutaneous effusion and then repair the dura mater while preventing infection. If there is still subcutaneous fluid one month after cranial repair, it is recommended to consult a doctor in time and standardize the treatment to avoid delaying the condition.