Why do nails keep splitting?

There are various reasons for nail splitting, including stress, thyroid disease, kidney disease, nutrient deficiency, infections, moisture, injury, and Psoriasis. People who work with their hands have split nails. It is a normal condition and can be managed by using home remedies. Keep your hands and feet clean, but don’t keep them in the water for long periods. Don’t bite or pull your nails and also don’t apply nail polish on them.