Dog Health

Parasitic Diseases in Dogs

Learn about common parasitic diseases in dogs and guide how to prevent diseases for dogs.

Learn about common parasitic diseases in dogs and guide how to prevent diseases for dogs.
Pet parasitic disease is the most common disease in dogs. The disease can occur at any age and is life-threatening for pets, especially when pets are young. Let’s learn about common parasitic diseases in dogs through Begy‘s article below.
There are many causes of parasitic diseases in dogs
There are many causes of parasitic diseases in dogs

Causes of parasitic diseases in dogs

Parasitism of species on the body of dogs causes dangerous effects on the health of pets. There are many causes of parasitic diseases in pets, the most common are the following:
  • Transmission through intermediate hosts: Mosquitoes and ticks that bite an infected pet can carry the larvae of that parasite to other pets during the process of sucking blood.
  • Infection through contact with objects, secretions containing parasites: Pets licking, swallowing objects, secretions, food with parasites will also be susceptible to infection.
  • Transmission from mother to child: During pregnancy, if the mother dog is infected with parasites, the puppies can completely get sick.
  • Direct contact with pathogens: Many parasites can be transmitted through external physical contact between dogs. 

Common parasitic diseases in dogs

Heartworm disease

Heartworm disease in dogs is a potentially fatal disease in pets. The disease is caused by parasitic worms that live in the heart and lung arteries of infected animals. The main cause of the disease is blood sugar from mosquitoes, ticks, etc. Common symptoms of the disease are difficulty breathing, coughing, vomiting, weight loss, health becoming weaker, listlessness and fatigue, lack of exercise. More serious diseases will cause dull skin, a lot of hair loss, sores on the legs, damaged eyes, a festering body, and a fishy smell. The worms spread through the blood vessels to the lungs and heart causing dangerous diseases such as lung failure, heart failure and affecting other organs. Therefore, it is necessary to take preventive measures, recognize symptoms and treat pets as soon as possible.


Helminthiasis is a disease caused by roundworms such as roundworms, hookworms, and Strongyloides parasitic in the intestines and liver. The main cause of transmission is by mouth, contact with objects, and food containing worm larvae. Another cause is infection from mother to child during pregnancy. Initial signs of the disease are abdominal distension, severe abdominal pain, thin body, hair becomes fibrous, dogs often itch, bite and scratch on the skin like ticks. After the disease is more severe, the pet’s tongue will be white, have diarrhea with black and bloody stools, feces with a rotten smell, wrinkled skin, gasping for breath. The disease damages the circulatory and lymphatic systems leading to damage to the dog’s internal systems. The disease is potentially fatal for pets if not detected and treated early.

Blood infection

Although an uncommon disease, blood infection is very dangerous. This is a disease caused by a tick parasitic infection in the blood vessels of the lungs, liver, spleen, kidneys, and brain of pets. Usually, dogs will show symptoms of respiratory illness, chills, fever, and coma. Dogs will not eat well, become jaundiced, become dehydrated, and show signs of depression. The disease becomes dangerous when his body temperature rises and his blood pressure is abnormally low. If not treated promptly, sepsis will quickly turn into septic shock and no longer be curable.

Flea parasitic disease

This is the most common parasitic disease in dogs. Adult fleas feed on the host’s blood, they infect other pets by moving to the pet’s body or by leaving flea eggs on everyday objects. Symptoms of the disease are frequent scratching, discomfort, and unusual bites on the skin. Although not dangerous, they spread very quickly, it is difficult to destroy all pathogens if the fleas have grown too much.
Flea parasitic disease
Flea parasitic disease

Prevention of parasitic diseases in dogs

Although parasitic diseases in dogs are difficult to detect, they are easier to prevent than other diseases. You must keep your pet clean at all times.
Avoid letting cats and dogs come into contact with strange animals to prevent parasitic diseases
Avoid letting cats and dogs come into contact with strange animals to prevent parasitic diseases
  • Hygiene: A clean environment is important to prevent parasitic diseases. You should clean the living area, the pet’s toys, the bed, the food bowl… regularly. You can use disinfectants, wash the dog with a specialized shower gel.
  • Regular regular check-ups: Many pet owners do not pay much attention to the periodic examination of their pets, but this is a good way to prevent and detect diseases in time. Thus, the treatment process is also easier and less expensive.
  • Avoid contact with foreign animals: Parasites that are transmitted through pet-to-body contact are very common. So when you let your dog out, you should not let them come into contact with each other.
Above is information about common parasitic diseases in dogs. Learning about these diseases helps you have more knowledge about pet health, making pet care more effective. Follow Begy for other pet blogs.

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