Medium Tyler Henry has undergone brain surgery twice now for cysts, once at age 18 and again in May 2025 for a colloid cyst.

In a September 2014 Facebook post, Henry revealed that his "brain was swelling in its own fluids, obstructed by an arachnoid brain cyst that I had been born with" before he underwent emergency ...

According to the National Institutes of Health (NIH), "Colloid brain cysts are benign [non cancerous], slow-growing lesions typically found in the brain's third ventricle," that contain ...