There are several causes of nail splitting, such as kidney disease, stress, depression, infection, injury, and nutrient deficiency. It is a common problem that can be prevented easily. Repeated contact with water can make your nails split. So, while washing dishes or using harsh chemicals, you should wear protective gloves. Keep your nails trimmed and use a good moisturizer. Don’t bite your nails and limit the use of nail polish removers. If you want to use a remover, make sure it is acetone-free. Using nail hardening products can make your nails strong.