Melanoma is a type of skin cancer that originates in melanocytes, the cells responsible for producing melanin, the pigment that gives skin its color. It’s crucial to detect melanoma early as it can metastasize and spread quickly. Characteristics to watch for include changes in moles or the appearance of new, irregularly shaped or colored lesions on the skin. Treatment often involves surgical removal, and in advanced cases, additional therapies like immunotherapy or targeted therapy may be recommended.