I have tingling on the left side of my back what causes this?

Many possibilities. Numbness can result from many things such as nerve compression, side effect from medication, alcohol. Consult with you doctor and get the appropriate treatment.

Related Questions

I have tingling on the left side of my back what causes it?

Pinched nerve? You could have a pinched nerve in your spine, multiple sclerosis or even neuropathy. See a neurologist for a check up.