Ingrown toenails can be prevented by clipping the nail straight across instead of rounded. Ingrown toenails are extremely painful and can result in a trip to a professional to have the offending nail cut out. I once had an ingrown toenail but was thankfully able to take care of it myself. It affects your ability to walk or even wear shoes. If you experience tenderness and/or redness and swelling around the toenail edges, take care of it immediately. An ingrown toenail can quickly get out of hand.