👉 Fissury, also known as "fissure," is a medical term used to describe a specific type of indentation or hole in the skin. It can be caused by various factors such as trauma, infection, or certain conditions like ulcers. Fissures are typically small and well-demarcated, often appearing as a raised bump or scar. They may also indicate an underlying condition like diabetes mellitus or diabetes insipidus. In medicine, fissure is used to describe the