Doctors says i have tarlov cysts. what in the world?

Tarlov cysts: Are typically seen on ct or MRI of the pelvis and are benign fluid (csf)-filled nerve root cysts found most commonly at the sacral level of the spine. Asymptomatic tarlov cysts are present in an estimated 5 to 9 percent of the general population.

Tarlov cysts: Tralov cysts are spinal fluid filled cysts at the base of your spine. They are benign but can be painful causing low back pain. They rarely require surgery.