Risk factorsBy Mayo Clinic staff
Risk factors for ear infections include:
- Age. Children between the ages of 6 months and 2 years are more susceptible to ear infections because of the size and shape of the eustachian tubes and because of their poorly developed immune systems.
- Group child care. Children cared for in group settings are more likely to get colds and ear infections than are children who stay home because they're exposed to more infections, such as the common cold.
- Infant feeding. Babies who drink from a bottle, especially while lying down, tend to have more ear infections than do babies who are breast-fed.
- Seasonal factors. Ear infections are most common during the fall and winter when colds and flu are prevalent. People with seasonal allergies may have a greater risk of ear infections during seasonal high pollen counts.
- Poor air quality. Exposure to tobacco smoke or high levels of air pollution can increase the risk of ear infection.
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