Your Yahoo avatar displays on your online Yahoo profile and also when you send Yahoo instant messages. You can pick from a variety of clothing styles, accessories and hairstyles to make your avatar unique. If you no longer have use for your avatar or prefer to have a blank picture next to your profile you can delete your Yahoo avatar on the Yahoo avatars page.
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Log in to your Yahoo account with your user name and password.
Navigate to "avatars.yahoo.com"
Click "Delete My Avatar." Click "Yes" when asked to confirm your choice.