What causes white patches (pityriasis alba) on a child’s face?
Disease description:
I’ve noticed that my child has developed white patches on their face. What causes white patches on a child’s face?
Doctor's answer (1)
Dr. Xie Zixing
Most cases of white patches on a child’s face are attributed to pityriasis alba. In daily life, habitual picky or selective eating may lead to malnutrition and vitamin deficiencies, which can trigger pityriasis alba—clinically manifesting as white, scaly patches on the face. Exposure to wind and sun also plays a significant role in its development. Maintaining local skin cleanliness and hygiene is essential in daily care.
