What's wrong with no crescent on your nails?

The crescent moon on the nail is the fifth place below the nail. It shows a white arc mark called a half moon mark. It is a nail that is not completely keratinized. The growth of the half moon mark is related to nutrition and physical changes. There is no crescent moon on the nails. This situation may be considered as the nail bed is relatively backward, and the exposed nails are completely keratinized, so no half-moon marks can be seen, but it does not rule out the possibility of malnutrition caused by lack of certain trace elements. Therefore, it is recommended that the patient should go to a regular hospital for examination and symptomatic treatment according to the examination results.