Why do white stuff show on my fingernails?

The white stuff at the base of the fingernail is called Lunula and contrary to popular belief, the shape and size of it does not reflect zinc or calcium deficiency. It's simply a result of genetics. read more

If all of your nails are showing white spots or streaks, the leukonychia could be related to another more serious condition such as anemia, cardiac disease, cirrhosis, diabetes or kidney disease [source: Bryant]. read more

By the time the white spot shows up (about six weeks after the injury) you’ve probably forgotten all about banging or knocking your fingers. Sometimes, the injury can stem from a manicure that put excessive pressure on the base of the nails. read more

White spots on your fingernails are common and usually do not indicate a serious problem. Many healthy adults may have these spots at some point in their lives, so developing them is likely not a sign of a serious medical condition. read more