Flea Bite Hypersensitivity in Dogs


What is Flea Bite Hypersensitivity?

Flea bite hypersensitivity, likewise called flea allergic reaction dermatitis (TREND) is the most typical skin illness of dogs in the United States. According to research studies, there are more than 15 antigens present in the saliva of a flea of which can trigger an allergic reaction in your pet if she is delicate to it. While flea control has actually enhanced, flea bite allergic reactions and dermatitis are a typical concern, with research studies revealing that as much as 40% of dogs in a specific location will check favorable for an allergic reaction to flea bites.

Those dogs that are not allergic will normally not develop sores from the bites, though they might bite or scratch at the flea as it bites them. Because dogs do not end up being desensitized to flea bites after an allergic reaction establishes, you will wish to do your finest to avoid them from being bitten by fleas. It does not appear that a specific breed or gender of pet is most likely to be allergic.

Flea bite hypersensitivity can be seen in any adult pet that is over one year of age, with numerous cases taking place in between ages one and 3.

Flea bite hypersensitivity takes place when your pet has a response to flea bites, experiencing irritation and soreness of the skin.

Signs of Flea Bite Hypersensitivity in Dogs

Signs of a flea bite allergic reaction seem even worse in the summertime and fall, which are peak flea times. Must your pet have a flea allergic reaction, you will see her bite at the base of her tail and scratch herself typically and with strength. Oftentimes, there will be a loss or thinning of hair above the base of the tail. Fleas themselves or their feces are typically discovered on your pet, though if you shower your pet typically this might not hold true. In a serious case, your pet can itch all over her body, experience generalized loss of hair and show red, swollen skin. You might likewise observe locations when your pet is having a flea allergic reaction.

  • Extreme scratching
  • Loss of hair
  • Existence of flea feces
  • Swollen skin


Some dogs are very hypersensitive to flea bites. In these dogs, they might be entirely devoid of fleas as an outcome of self-grooming exceedingly. Since of the self-grooming, it might be tough to discover the existence of fleas or feces on your pet. A fine-toothed flea comb (32 teeth/inch) can be utilized to discover fleas and their feces and you can likewise look carefully at your pet’s bed linen for eggs, larvae and feces.

Reasons For Flea Bite Hypersensitivity in Dogs

Must your pet have flea bite hypersensitivity, she does not need to be plagued with fleas to experience substantial irritation; just one flea bite can trigger irritation for a couple of days.

Medical Diagnosis of Flea Bite Hypersensitivity in Dogs

Must you see that your pet is scratching herself more than typical, you might think about a journey to the vet so that she might be taken a look at and get some relief. Your vet will ask you for details the signs you have actually observed and when you initially discovered them. He will carry out a complete health examination of your pet; allergic reactions to flea bites can be detected through the observation of signs and in some cases the existence of fleas. Intradermal skin screening has actually been discovered to be reliable in detecting a flea allergic reaction, in addition to specialized blood tests (IgE blood tests).

Treatment of Flea Bite Hypersensitivity in Dogs

When dealing with flea bite hypersensitivity, your vet will advise both topical and oral medications that have the ability to be utilized for the control of fleas. An adulticide will get rid of the adult fleas, and an insect development regulator (IGR) will assist get rid of immature kinds of the flea. This implies that they will not maturate and bite your pet in the future. Your vet will take into factor to consider how extreme your pet’s allergic reaction is, how typically she goes outdoors and determination of your pet to let you treat her when making a suggestion on treatment. Allergic reaction injections, likewise known as desensitization, might be practical however are discovered to be effective in about half of those dogs with flea bite hypersensitivity. Corticosteroids can be utilized as they will considerably alleviate the itching your pet is experiencing. Because there are significant possible adverse effects, your vet might rule out them the very best alternative for your pet. 

You will likewise wish to treat your pet’s environment, to consist of the indoor and outside locations where your pet hangs around, especially the locations where she sleeps. While you might not see signs in other family pets, you will wish to treat them also, so that they don’t bring fleas around the pet that is allergic.

Healing of Flea Bite Hypersensitivity in Dogs

Month-to-month items are readily available (both oral and topical) that will be practical in avoiding fleas from affecting your pet. Ought to your pet develop a secondary bacterial skin infection as an outcome of scratching, your vet might advise prescription antibiotics. You will then wish to watch on the infection to be sure that it is fixed. Once your pet has actually recuperated, you will wish to keep a flea control program to prevent future invasion and allergy.

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