Has anyone done electrolysis on the back? What is the risk of needle penetrating beyond follicle and hitting spine, nerve or disk. The skin on the spine is so thin. I know this sounds paranoid, but I did laser hair removal on my back and it stimulated my fine hairs and increased hair growth, so now I’m paranoid about all hair removal.
Insertions are not deep enough to affect the internal structures you described.
I’m not sure if such a thing is even possible. Electrolysis needles are thinner than hairs so they’re flimsy and not long enough to puncture through layers of skin, muscle and cartilage to reach nerves in spinal chord.