What is the cause of uneven toenail

Nail uneven often need to be considered due to nail malnutrition, lack of certain vitamins and zinc, calcium and other trace elements. There is a need to consider may be nail infection caused by fungi onychomycosis, which is commonly known as onychomycosis. Of course, do not rule out other factors caused, such as the existence of anemia, external environmental stimulation, endocrine disorders, etc. What is the reason, you can go to the hospital to check the diagnosis.