Most subdural hygromas that are asymptomatic do not require any treatment. Some might opt to perform simple burr holes to alleviate intracranial pressure (ICP). Occasionally a temporary drain is placed for 24-48 hours post-op. In recurrent cases, a craniotomy may be performed to attempt to locate the location of the CSF Leak. In certain cases, a shunt can be placed for additional drainage. Great caution is used when choosing to look for the CSF leak due to them generally being difficult to spot.