Large freckle-like nevi may grow with age. Naevus freckle is a common pigmented skin disease in dermatology and may be affected by some genetic factors. It can appear in all parts of the skin, and is most common at the junction of skin or mucous membranes. It is usually a brown spot no more than 2 millimeters in diameter, and the lesions are usually distributed unilaterally, and the area of the lesions may become larger with age. Freckle-like nevus large area may grow more and more, may be with the individual’s daily routine, dietary structure and mental stress is related, it is recommended to pay attention to maintain a good daily routine, pay attention to keep the skin clean.