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A stubbed toe sounds harmless. Dropping a weight on your nail feels unlucky, not dangerous. Even a runner’s toe often gets ignored. But then weeks later, the nail turns yellow, cloudy, or thick. And the question hits hard. Did that injury just cause toenail fungus? Short answer: Yes, nail trauma can absolutely lead to toenail…

What Are Beau’s Lines on Toenails? Beau’s lines are transverse depressions in the nail plate that form when cell division in the proximal nail matrix temporarily slows or stops. This pause in growth happens because normal keratinization is disrupted by a systemic insult such as illness, high fever, metabolic imbalance, or physical stress. The result…