Common causes of white spots on the body include vitiligo, florid chaff rash, senile white spots and so on. 1. Vitiligo: the cause of this disease is unknown, it is believed that this disease is related to autoimmune, oxidative stress, heredity and other factors, leading to inhibition of the tyrosinase system and the destruction of melanocytes, and ultimately make the affected areas of pigmentation, the phenomenon of white spots on the body. 2. florid chaff rash: the cause of this disease is mainly caused by Malassezia globosa infection, its onset and high temperature and humidity, lipids and sweating, malnutrition, chronic diseases and the application of glucocorticoids and other factors, with a certain degree of genetic predisposition, occurring throughout the body, manifested in white spots, scales and other symptoms. 3. Geriatric white spots: the cause of geriatric white spots is unknown, which may be related to genetic factors and sunlight exposure, and is usually manifested as round white spots with the size of a needle tip to a bean grain. It is suggested that patients should go to the dermatology department of regular hospitals in time if the cause of the disease is not clear, follow the doctor’s instructions to make a clear diagnosis and timely treatment.