Cracked heels occur when the skin on the heels becomes dry, thick, and loses moisture. This makes the skin less flexible, causing it to split, especially when pressure is applied while standing or walking. In the beginning, the cracks may only appear as rough or dry skin, but if ignored, they can deepen, become painful, and may even start bleeding. Regular care, proper hygiene, and keeping the feet well-moisturised can help prevent this common problem.