Nail disorders refer to various conditions that affect the appearance and health of the nails. Common issues include fungal infections, which can cause discoloration and thickening, and psoriasis, which may lead to pitting and separation of the nail from the nail bed. Other disorders include ingrown nails, where the nail grows into the surrounding skin, and brittle nails, which are prone to breaking and splitting. These conditions can result from factors such as poor hygiene, trauma, or underlying health issues like diabetes or thyroid disorders. Treatment options vary depending on the specific disorder and may include topical medications, lifestyle changes, or professional medical intervention.