What are signs that a dog may have fleas?

A dog infested with fleas typically exhibits symptoms such as itching, inflamed areas, and bald spots. Fleas are known to cause intense itching due to their bites, which leads to scratching and resulting skin irritation. Prolonged scratching can cause inflammation and may even lead to the development of bald patches in areas where the dog has groomed excessively or scratched to relieve the discomfort.

The presence of itching indicates that the dog's skin is reacting to the fleas, while inflamed areas suggest irritation caused by the bites. Bald spots often occur when a dog continuously scratches or bites at the affected areas, removing hair and damaging the skin. These signs are key indicators of a flea infestation and warrant immediate attention to alleviate the dog's discomfort and eliminate the pests.