What causes white patches on a child's face?

The causes of white patches on a child's face may include the following: 1. **Dry skin**: Prolonged exposure to dry air may lead to facial skin dryness, flaking, and the appearance of white patches. 2. **Malnutrition**: Long-term picky eating habits may lead to a lack of essential nutrients in the body, resulting in dry skin and white patches. **Disease-related factors**: 1. **Seborrheic dermatitis**: Poor facial hygiene may cause excessive sebum production, triggering seborrheic dermatitis and resulting in redness, flaking, and white patches on the skin. 2. **Pityriasis alba**: Long-term malnutrition may reduce melanocytes in the facial skin, leading to pityriasis alba, which is characterized by round or oval-shaped pale white patches. 3. **Tinea versicolor**: Fungal invasion of the skin may cause tinea versicolor, characterized by spotted rashes that gradually develop into patches and are accompanied by itching and scaling. Parents are advised to seek timely medical attention based on the child's specific condition and receive appropriate treatment.