How can I tell that a dog has fleas? - briefly
Look for tiny, dark insects or moving specks in the coat, excessive scratching, red skin, or a gritty sensation when using a fine‑toothed flea comb. Finding flea dirt—small black particles that turn reddish when damp—confirms an infestation.
How can I tell that a dog has fleas? - in detail
Flea infestation in a canine presents several observable signs.
Visible fleas appear as tiny, dark specks moving rapidly through the fur, especially along the neck, tail base, and belly. Adult fleas may be seen crawling on the skin or in the coat when the animal is examined closely.
Skin irritation manifests as small, red bumps or papules. These lesions often cluster in lines or patches, commonly referred to as “flea allergy dermatitis.” Scratching, licking, or biting at affected areas indicates discomfort.
Excessive shedding and a dull coat may accompany a heavy infestation, as fleas disturb the natural oil balance.
A simple diagnostic method involves using a fine-toothed comb. Running the comb through the fur collects fleas, flea dirt (feces), or eggs. The collected debris appears as dark specks resembling ground coffee; when moistened with water, it turns reddish, confirming the presence of flea blood.
Environmental clues support the diagnosis. Flea larvae and pupae reside in the dog’s bedding, carpets, and upholstery. A “flea comb” or sticky trap placed in these areas can capture emerging adults, indicating a resident population.
Summary of key indicators:
- Live fleas moving on the animal’s body
- Small, red, itchy bumps, often in clusters
- Excessive scratching, licking, or biting behavior
- Dark specks in the fur or on the skin, identified with a flea comb
- Flea dirt that stains reddish when wetted
- Presence of fleas, larvae, or pupae in the surrounding environment
Prompt identification enables timely treatment and prevents secondary skin infections.