It can take months to years for a toenail to grow back. The timeline can depend on the reason it’s missing, whether trauma, fungus, or another health condition. Share on Pinterest Aitor Diago/Getty ...

Q: My husband has toenail fungus that has made his big toenails green. He usually doesn’t remember to put anything on them. I have him just soaking his sock, while he is wearing it, with Listerine.

When Maria Delgado noticed a dark streak under her big toenail, she assumed it was from dropping her gym bag on her foot. Six months later, that seemingly innocent mark led to a diagnosis that saved ...