Lifetime health & preventative care
Fleas: the dog, the home & prevention
Break the flea life cycle with a coordinated household plan.
Why fleas can keep appearing
Adult fleas feed on the animal, while eggs fall into the surroundings and develop through larval and pupal stages. Bedding, carpets and resting areas can sustain the infestation. Treating only the adults you see may leave the next generation emerging. Control can take time even when an appropriate plan is followed.
Signs and simple observations
Itching, chewing, irritated skin and black specks in the coat can be clues. Flea dirt may leave a reddish-brown mark when placed on damp white tissue, but a negative check does not rule out fleas. Some dogs are very sensitive to bites. A flea comb can help you inspect the coat without replacing treatment.
Coordinate the household
Discuss a suitable product for each pet with your vet or qualified medicine supplier. Never share a dog product with a cat or assume one formulation is safe for every species. Treat affected household pets as advised and address the environment: vacuum resting areas, wash bedding appropriately and use any recommended premises product exactly as directed. Keep animals away from treated areas for the specified period.
When control is not working
Check whether doses were missed, the current weight was used, every pet was considered and instructions on application or bathing were followed. Do not repeat early or combine products yourself. Your practice can reassess the plan and explain expected progress. Seek assessment for sore skin, persistent itching or a puppy who is weak or pale. See regional prevention and skin guidance.
Continue your care plan
Parasites & Preventative Healthcare · Keeping my dog healthy · New symptoms: find the right next step
Evidence and review
General information, not diagnosis or an individual treatment plan. Sources include veterinary professional guidance, veterinary charities and relevant regional parasite organisations. Clinical recommendations need individual veterinary interpretation.
About this guidanceReview details and sources
Evidence and review
Reviewed 2 October 2026 · Review sooner if advice, distribution or requirements change.