Fleas are among the most common parasites in dogs. They're not only annoying, but can also cause skin problems, infections, and even the transmission of worms. Here, you'll learn how fleas live, how to identify them, and what measures really help – so your dog stays relaxed and healthy.
What are fleas and how do they live?
Fleas are tiny, wingless insects that feed on the blood of their host. The most common fleas in dogs are the cat flea (Ctenocephalides felis) and the dog flea (Ctenocephalides canis) .
- They can jump up to 2.5 cm – so fleas can get onto your dog more easily than you think.
- Fleas lay numerous eggs every day, which end up in dog beds, baskets, carpets or upholstery .
- A flea goes through four developmental stages: egg → larva → pupa → adult. The pupae, in particular, can survive in the environment for months before becoming active.
How do you recognize fleas on dogs?
Typical signs are:
- Itching and frequent scratching , often on the back, belly or base of the tail
- Redness, small wounds or inflamed skin due to intensive scratching
- Flea droppings , visible as small black dots that turn red on damp paper
- visible fleas in the fur, especially on light fur or when brushing
Extra tip: Check areas like the neck, ears, armpits, and groin area – that's where fleas like to hide.
Dangers of flea infestation
- Flea allergy : Some dogs react to just a few flea bites with severe itching and skin inflammation.
- Infections : Scratching can cause bacteria to enter the skin.
- Anemia : Puppies and older dogs in particular can suffer from blood loss if the infestation is severe.
- Transmission of tapeworms : Fleas can transmit worm parasites to dogs that are otherwise barely noticeable.
Preventing and combating fleas – practical tips
Regular checks
- Brush your dog at least once a week. Flea dirt or individual fleas are easier to spot, especially on light-colored dogs.
Flea prevention
- Spot-on preparations , flea sprays , tablets or collars as recommended by your veterinarian.
- Some products have a preventative effect over several weeks.
Keep the environment clean
- Wash dog beds, blankets and baskets regularly.
- Vacuum carpets, upholstery and crevices thoroughly.
- In cases of severe infestation, special flea sprays or foggers can help – please always ensure that they are animal-friendly.
Act quickly in case of infestation
- Immediate bathing or flea shampoo can help remove the pests.
- Combine treatment of dog and environment to prevent re-infestation.
Extra tips for practice
- Check other animals in the household as well – fleas easily jump from animal to animal.
- Avoid flea infestation: Wild animals (e.g. cats, foxes) can bring in fleas.
- Pay attention to seasonal weddings: Spring and summer are especially popular wedding seasons.
Other interesting facts about fleas
- Fleas can lay up to 100 eggs per day – an infestation spreads quickly.
- Even homes without other animals are not safe – flea eggs can be introduced through shoes or clothing, for example.
- Flea bites in humans are possible, but the parasites usually only stay on us for a short time and prefer dogs or cats as hosts.
Conclusion: Take fleas seriously, but stay calm
A flea infestation is unpleasant, but usually easily treatable. With regular checkups, targeted prevention, and a clean environment, you can effectively protect your dog. It's important to act quickly before these little pests multiply massively. This will keep your dog healthy and flea-free.
