Tag archives: Parasites

Click for Part 1, Part 2, and Part 3 of this ongoing blog about itchy dogs.

In part 3 of this series of blogs about itchy dogs, we took a look at two common parasites of dogs; lice and mites. In this fourth and final part of these blogs we will discuss fleas and ticks, two other common parasites that can make our dogs’ lives miserable at times.

Fleas

Though there are multiple species of fleas that can infest our dogs, the most common flea type in North America is the “cat flea”, known to scientists by the name Ctenocephalides felis. Fleas are commonly acquired by our dogs through close contact with other infested animals or from environments suitable for flea development and dormancy. Regions with higher environmental temperatures and high relative humidity allow fleas to develop more quickly and to survive for extended periods of time off of a host. Once infested, there are two important pieces of information that should be considered to eliminate fleas and prevent a reinfestation of your dog; flea control on the host and flea control in the environment.

Since female fleas must take a blood meal before they can lay eggs, controlling the fleas ...

Click for Part 1 and Part 2 of this ongoing blog about itchy dogs.

Though many itchy dogs suffer from food or environmental allergies (as discussed in previous blogs of this series), parasites of the skin and hair coat (called ectoparasites) are another important cause of itchiness in our canine companions. In fact, performing parasite testing should be considered a veterinary standard for itchy dogs. Ruling out parasitic causes of itchiness is important because they can greatly complicate diagnosis and treatment of other skin related diseases. Though there are many individual species, in this and the next blog in this series we will examine four general groups of ectoparasites that infest our dogs.

Lice

The first experience I can recall involving lice was in elementary school; a time period in life when an infestation of head lice could turn any otherwise sanitary, well-meaning child into the classroom leper. Luckily for us dog owners, we don’t need to fret much about our own health if our canine children come down with an infestation of lice as they tend to be very species-specific in regards to which creatures they choose to call home.

Lice come in two main varieties; chewing lice and ...