Many older adults notice their toenails becoming thicker and more difficult to trim. While some thickening is normal with aging, it’s important to recognize when it might signal something more serious.
Common culprits include fungal infections that thrive in warm, moist environments inside shoes. These often cause yellowing and crumbling along with thickness. Past toe injuries can also lead to permanent nail changes that appear years later.

Simple daily care makes a big difference:
- Wash and thoroughly dry feet, especially between toes
- Wear moisture-wicking socks and properly fitted shoes
- Trim nails regularly using proper technique
- Apply moisturizer to prevent excessive dryness
Those with diabetes should be particularly vigilant, as nail changes can lead to serious complications. When in doubt, a podiatrist can help determine if your thick nails require medical treatment.