Lumbar cyst is caused by:

Lumbar cysts may be related to congenital abnormalities, trauma or lumbar degenerative diseases.

1.

Abnormal development of the neural canal during congenital abnormalities, resulting in repeated friction of the nerve root in the spinal canal, may form lumbar cysts.

2.

Severe trauma, trauma or surgery at the traumatic lumbar site can cause damage to the spinal cord and nerve roots, which can increase the risk of lumbar cysts.

3. Lumbar degenerative diseases

With age, the degenerative diseases of the human spine gradually worsen, and these changes may lead to the occurrence of lumbar cysts.