Many things: Generally toenail deformity are indicative of very old and sometimes minor injury or damage to nail bed. . They can also be from disease such as athletes foot or circulatory problem. Usually you won't know what caused them.
Answered 10/4/2016
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Depends: It depends what you mean by bumps. Are they ridges? Are they white spots but not raised? Could be vitamin deficiency or maybe trauma. Would need more information to be more accurate.
Answered 9/14/2013
4.9k views
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