Left untreated, fleas can multiply rapidly and make your dog seriously ill. That's why it's important to check your dog for fleas on a regular basis and act quickly to eliminate any outbreaks that occur. Some dogs are severely allergic to flea saliva and can experience extreme discomfort even from a single flea bite.
How long can fleas be left untreated?
Without a host, adult fleas live only a few days to 2 weeks. On short-haired cats and dogs fleas survive an average of 8 days; they live longer on long-haired animals.
Do fleas go away without treatment?
Will a flea die without a host? Fleas are parasites; they need a regular supply of blood to survive. Adult fleas develop a dependency on the blood of their host, so yes, they will quickly perish should they be separated from them for a certain amount of time – this could be as short as a couple of days.
What happens if a dog has fleas for a long time?
Your dog's constant scratching may lead to visible patches of hair loss and reddened, irritated skin. Fleas may also cause skin allergies and can transmit other parasites, such as tapeworms, to your dog.
How harmful are fleas to humans?
There are more than 2,500 flea species in the world and more than 300 species in the United States. Flea bites rarely cause any lasting harm. They cause mild annoyance and irritation for a short period. However, flea bites can be dangerous because they may spread diseases that can be serious or even fatal.
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