I Have a Cyst in My Lower Back—What Should I Do?

Question: What is a Tarlov cyst seen on MRI?

Answer: Tarlov cysts (perineural cysts) are often detected incidentally and do not cause symptoms in most people. Some patient-information sources state that they may be seen in about 5–9% of the population.

Question: When does it become important?

Answer: A physician may evaluate it further when there are signs of nerve root compression, significant neurological symptoms, or when differentiation from another cyst/tumor is necessary.