4. Nose Bleeds

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Just about everyone knew at least one kid in school who always seemed to be getting nosebleeds. Fortunately, the cause is usually nothing to be alarmed about, but there are occasions when something serious is causing a dog to suffer from nosebleeds. Most commonly it is caused by an injury of some sort, like a snake bite, but it can also be an indication of anemia, which will have to be diagnosed by a veterinarian who can perform the appropriate blood tests.