Vitiligo is not contagious, so there is no contagious period. The disease is primarily caused by decreased immunity, genetic heredity, lack of copper elements in the body, or local trauma. Overall, the causes of the disease are complex and may vary from person to person. Once diagnosed, it is crucial to seek treatment at a reputable dermatology department in a formal hospital. Treatment typically includes oral medication combined with topical medication and supplemented by 308 laser therapy, which generally yields good results. Since the disease is not contagious, it cannot be transmitted through contact with others. It is important to maintain a healthy lifestyle, avoid staying up late, exercise regularly, and strengthen the immune system, as these practices can aid in the treatment.