How to check if there are parasites on dogs

You’re giving your dog a belly rub after a long walk in the park, and suddenly you notice something odd. Maybe they’ve been scratching more than usual, or their coat doesn’t look as shiny as it used to. These could be signs that your furry friend has picked up some unwelcome guests—parasites. Figuring out if your dog has parasites on its body isn’t always straightforward, but by knowing what to look for, you can catch the problem early and keep your pet healthy.

One of the most obvious clues is excessive itching. If your dog is constantly scratching at their ears, rubbing their face on the carpet, or biting at their paws, it could be a sign of external parasites like fleas or mites. In the U.S., flea infestations are especially common, especially during warmer months. You might even spot tiny black specks in your dog’s fur—those could be flea dirt, which is essentially flea feces. If you suspect fleas, run a fine - toothed comb through their coat over a white piece of paper. If you see black dots that turn red when wet, it’s a pretty clear indication of fleas.

Internal parasites, like worms, can be trickier to detect but often leave telltale signs. A sudden change in appetite is a red flag. Your dog might start eating less or, conversely, seem hungrier than usual but still lose weight. Diarrhea, especially if it’s bloody or has a strange smell, is another common symptom. In some cases, you might even see actual worms in your dog’s feces. Tapeworms, for example, sometimes shed segments that look like small, white grains of rice around your dog’s anus or in their poop.

In the context of Western pet ownership, there are legal obligations when it comes to parasite control. In many European countries and U.S. states, keeping your dog free from parasites isn’t just a matter of comfort—it’s part of responsible pet care. In California, for instance, pet owners are required to treat their dogs for fleas regularly to prevent the spread of diseases like the plague (yes, fleas can transmit it to humans and other animals). Neglecting to do so could potentially lead to fines or other penalties.

Cultural norms also influence how we approach parasite prevention. In the U.S. and Europe, there’s a strong emphasis on non - invasive and humane treatment methods. Instead of using harsh chemicals, many pet owners opt for natural flea repellents like essential oils (but be cautious, as some oils can be toxic to dogs). When it comes to deworming, vets typically recommend safe, oral medications that target specific types of worms.

For apartment dwellers, parasites can quickly become a problem for neighbors too. Fleas can easily jump from one unit to another, so if you suspect an infestation, it’s important to take action immediately. Notify your landlord and consider treating your dog’s bedding and living area with pet - safe products. And when walking your dog in shared spaces, avoid areas with tall grass or where other dogs might have defecated, as these are prime spots for picking up parasites.

If you notice any of these signs, don’t try to diagnose or treat the problem on your own. In the U.S., the American Veterinary Medical Association (AVMA) advises consulting a licensed veterinarian. They can perform tests, like fecal exams or skin scrapings, to accurately identify the type of parasite and prescribe the right treatment. Remember, a little vigilance goes a long way in keeping your dog happy, healthy, and parasite - free.