What causes impetigo in newborns?

Generally, neonatal impetigo is caused by trauma, infection, allergy, and other factors. It can be treated through general care and medication. Specific analysis is as follows:

1. Trauma

The skin of newborns is delicate and easily irritated or scratched by external friction or injury. Such trauma may trigger inflammatory reactions in the skin, leading to impetigo. It is important to keep the affected area clean and dry to prevent contamination and infection. Wash the area daily with warm water and gently pat dry to promote healing and relieve itching.

2. Infection

Infection is one of the most common causes of neonatal impetigo. It can be caused by various microorganisms such as Staphylococcus aureus, streptococcus, and Escherichia coli, typically transmitted from the mother during delivery or through contact with infectious sources after birth. Under a doctor's guidance, antibiotic medications such as erythromycin ointment, chlortetracycline hydrochloride ointment, or mupirocin ointment may be applied for treatment.

3. Allergy

Newborns have sensitive skin that is prone to allergic reactions to certain irritants, such as laundry detergents, skincare products, or specific medications. Allergic reactions can cause skin redness, swelling, itching, and blistering, which may progress into impetigo. Under medical supervision, medications such as calamine lotion or fusidic acid cream may be used for treatment.

In addition, congenital skin disorders such as epidermolysis or parakeratosis may also be potential causes. It is recommended to seek timely medical evaluation at a hospital to determine the underlying cause and receive targeted treatment.