How can I find out if a dog has fleas? - briefly
Examine the dog’s fur and skin for tiny, moving insects, bite marks, or black specks of flea dirt, and run a fine-toothed flea comb through the coat; a veterinarian can confirm infestation with a skin scrape or microscopic analysis.
How can I find out if a dog has fleas? - in detail
Examine the coat closely. Use a fine‑toothed flea comb, pulling each section from the skin toward the comb. After each stroke, inspect the comb for tiny black specks (adult fleas) or reddish particles (flea feces). A quick rinse of the comb in soapy water will confirm whether the specks are live insects.
Observe the dog’s behavior. Frequent scratching, biting at the skin, or excessive licking often indicate an infestation. Look for red, irritated patches, especially around the neck, tail base, belly, and inner thighs. Small, raised bumps (papules) or scabs may also be present.
Check the bedding and living area. Place a white sheet or paper under the dog’s favorite resting spot; flea feces (dark specks) will appear as small, pepper‑like particles that turn reddish when moistened with water. Vacuum the area thoroughly and examine the vacuum bag for similar debris.
Consider a diagnostic test. A veterinarian can perform a skin scrape or use a magnifying lens to identify fleas, eggs, or larvae. In severe cases, a blood test may detect allergic reactions caused by flea saliva.
Implement preventive measures promptly. If any evidence is found, treat the dog with an appropriate flea control product (topical, oral, or collar) and treat the environment simultaneously to break the life cycle. Regular combing and routine inspections will detect re‑infestations early.