Uneven nails can stem from low zinc, calcium, or vitamin A or hint at skin disorders like eczema or psoriasis. Tiny pits or waves often pair with these conditions. Psoriasis is famous for pitting, and nail changes often track skin flare-ups. Alopecia areata and lichen planus can cause similar dents. Good nail care limits harm, but treatment targets the root illness more than the nail itself.
