Risk factors

Factors that can increase the risk of swimmer's ear include:

• Excess moisture in your ear canal from heavy perspiration, prolonged humid weather or water remaining in the ear after swimming
• Exposure to high bacteria levels in contaminated water
• Cleaning the ear canal with cotton swabs, hairpins or fingernails, which can cause scratches or abrasions
• Ear devices, such as earbuds or hearing aids, which can cause tiny breaks in the skin