What is the reason for the short black line in your nails?

The nail has a very short black line is generally due to the reasons for doing nails, will cause the occurrence of nail bleeding phenomenon, at the same time and usually improper nail clipping also has a certain relationship, in peacetime to pay attention to adjustment, it is best not to do nail art, normal is will recover on its own. It may also be caused by the lack of trace elements in the body, in the diet to eat more green vegetables, such as carrots and vegetables.