Can ingrown toenail cause a pinched nerve?

No: No not of any major nerve it may irritate a small superficial nerve but not a large nerve.

Different: In pinched nerve , compression on it by scar tissue , ligament etc as in carpal tunnel , in ingrown toe nail , grows into skin and soft tissue due to inward direction of edge of nail causing erosion resulting an open wound.

Not really : An ingrown toenail is due to the nail having some type of deformity and the nail getting "ingrown" down into the skin on the side of the toe. If you are experiencing significant pain you should see your podiatrist so this can be correctly diagnosed.

NO!!: An ingrown toenail may cause pain from pressure on the skin & nailed or from an infection, but should not be associated with a pinched nerve.

Ingrown: Yes, superficial sensory nerves can be stimulated by swelling & direct pressure, causing pain. Deep nerves usually not a problem with ingrown nail.