When the heel is unstable, toes tend to grip which can lead to tendinitis, worsening of toe deformities, nail problems, corns and calluses.

如果脚后跟不稳定，脚趾就会紧紧抓地，可能导致肌腱炎、加剧脚趾变形、指甲异常、鸡眼、产生老茧。

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From this we can know that lost a horse shoe nail may lead to lose a country.

从中我们可以知道，失去了一个马蹄钉可能失去一个国家。

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On May 18, WHIAAPI will lead an interagency Nail Salon Worker Roundtable at the Environmental Protection Agency Headquarters.

WHITEHOUSE: WHIAAPI Weekly Highlights: AAPI Heritage Month Edition

Archaeologists have found tacks which would have been used to nail lead on to the hulls of ships inside one of the bays.

BBC: Roman shipyard found by British archaeologists

But infections -- which could develop after a variety of scenarios ranging from a mosquito bite or even a scratch on the skin from a nail -- can sometimes lead to bad outcomes.

CNN: Rocker Hanneman's death puts attention on spider-bite effects