The earliest signs of vitiligo are usually small, pale or white patches of skin (loss of pigmentation) that appear gradually and may slowly enlarge over time. These patches often start as faint light spots that become more noticeable as melanin decreases, and they may have well-defined edges. Vitiligo commonly appears first on areas like the face (around eyes, mouth), hands, fingers, wrists, elbows, knees, and around body openings such as the mouth, nose, and genitals, as these regions are more exposed to friction and immune activity. You should consult a dermatologist early if you notice new white patches, rapid spreading, or changes in skin color symmetry, so diagnosis can be confirmed and early treatments (like topical steroids or light therapy) can be started to help slow progression.