Thickened, Discolored Toenails? It Could Be a Fungal Infection! Toenail Fungus Isn’t Just Cosmetic – Here’s Why You Should Treat It 1. It Starts Small But Gets Worse Over Time Toenail fungus (onychomycosis) may seem like a minor issue at first. You may notice slight yellowing or thickening of the nail, but it doesn’t cause significant discomfort. However, if left untreated, the infection can spread deeper, causing the nail to become brittle, distorted, and even separate from the nail bed over time. 2. It Can Lead to Pain and Discomfort Initially, toenail fungus may not be painful, but as the infection worsens, the thickened and misshapen nails can press against your shoes, causing pain while walking. In severe cases, simple activities like running or prolonged standing can become uncomfortable. 3. It Spreads to Other Nails and Skin [...]