What is the clear sticky fluid coming out of a open scar after brain surgery?

Cerebrospinal fluid (CSF) is a clear, colorless bodily fluid that fills the ventricles (cavities) of the brain and the subarachnoid space (the area between the brain and the skull). CSF is produced by the choroid plexus, which is a group of blood vessels in the brain. CSF circulates through the ventricles and subarachnoid space, providing nutrients and removing waste products from the brain.

After brain surgery, it is common for CSF to leak from the surgical site. This is because the dura mater, which is the tough outer layer of the brain, has been opened during surgery. CSF leakage can also occur if the choroid plexus is damaged during surgery.

CSF leakage is usually not a serious complication of brain surgery, and it typically resolves on its own within a few days or weeks. However, CSF leakage can sometimes lead to infection or other complications, such as hydrocephalus (a buildup of CSF in the brain).

If you are experiencing CSF leakage after brain surgery, it is important to see your doctor for evaluation and treatment.