Parasites In Cats: Symptoms And Treatment That Are Transmitted To Humans

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Parasites In Cats: Symptoms And Treatment That Are Transmitted To Humans
Parasites In Cats: Symptoms And Treatment That Are Transmitted To Humans

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Parasites in cats can be divided into two groups: representatives of one live outside the body of the animal, and the other inside it. Most of the parasites that live on cats can be transmitted to humans, therefore, every pet owner should know the symptoms for which pathology can be suspected, and promptly begin treatment.


  • 1 External parasites

    • 1.1 Ticks
    • 1.2 What to do
  • 2 Internal parasites

    • 2.1 Ascaris
    • 2.2 Nematodes

External parasites

The most common parasites that live on cat hair are ticks and fleas. Infection with them occurs through contact with a sick animal. You should be aware that cat fleas live exclusively on cats. Fleas and ticks feed on the pet's blood; during the bite, parasitic saliva remains on the cat's body, causing itching. If these parasitic forms in large numbers infect the kitten's body, it can develop anemia, which is life threatening due to the large loss of blood.

These parasites are not transmitted to humans, but they can bite on contact with an infected pet. They can also bite a person, living in carpets and upholstered furniture. Some people develop an allergic reaction to flea bites in the form of redness and itching.


Cats can become infected with otodectosis. Pathology is characterized by the establishment of a tick in the cat's ear. These parasites feed on animal blood and earwax. The disease is diagnosed due to the formation of brown plaque in the area of ​​the auricle, as well as clearly visible bite sites. Pathology can be complicated by otitis media, meningitis and deafness.


Cats also have subcutaneous mites that cause sarcoptic mange and notoedrosis. These parasitic forms lead to irritation, which provokes the animal to constant scabies. Scratching gradually damages the skin, and hard crusts appear on the site of the papules. With such a disease, hair loss is possible.

There are also such types of parasites that are able to constantly be on the epidermis of the pet and its fur. If they do not cause the development of pathology, such an existence of parasitic forms is considered the norm. However, with a decrease in immunity, these parasites cause demodicosis. In most cases, this disease does not show symptoms and does not require treatment. With a strong weakening of the pet, signs of the disease make themselves felt in the form of the appearance of bald patches.


Long-haired breeds can suffer from lice. These parasitic forms make themselves felt with the help of itching. There are also other symptoms of infection:

  • severe excitability;
  • decreased appetite up to complete refusal to eat;
  • dehydration from not drinking.

If treatment is not carried out in a timely manner, the symptoms will become more pronounced.

What to do

If fleas have been found, the pet should be treated with special agents designed to combat these parasites. You should also treat carpets and upholstered furniture with antiparasitic agents. People do not need treatment since cat fleas do not live on them. If cats do not have parasites, then in the warm season, you should still prevent this pathology by treating the animal's hair with a special spray.


Otodectosis is treated with ear drops and cleaning the ear to remove dirt. The owners must treat two ears at once, regardless of whether the second auricle is affected or not. This is due to the fact that mites are able to localize in the inner ear, which is not accessible for visual control.

Internal parasites

What parasites can exist in the internal organs and systems of cats? These helminths are divided into two groups.

  1. They develop exclusively in the body of the carrier. When a cat gets sick, the risk of human infection increases.
  2. The life cycle takes place not only in the host's body, but also in the environment. Infection with such helminths can occur not only through contact with a sick person or animal, but also through the use of unwashed fruits or garbage.

The symptomatology of the pathology is affected by the type of helminth that has struck the body.


These helminths are representatives of roundworms. Kittens most often suffer from this disease. Helminths can be transmitted from sick animals, when using dirty particles from the soil. Roundworms can parasitize in different parts of the feline body - in the stomach, intestines, lungs.


The vital activity of these helminths can provoke the development of:

  • cough;
  • vomiting;
  • drooling in an animal.

In this case, the parasite enters the oral cavity, and then is swallowed, from where the larvae enter the intestines, where they develop to maturity, lay offspring. From this moment on, a person can easily become infected with ascariasis.

This pathology may not show any symptoms, and in some cases, roundworms can cause:

  • intestinal blockage;
  • sharp weight loss;
  • decreased appetite.

In kittens, ascariasis can cause death. If the treatment of helminths is not done on time, the risk of transmission of the worm to humans increases, as well as a severe parasitic lesion of the feline body, which can lead to serious complications. If a cat has been diagnosed with ascariasis, children living with the pet in the same house are likely to be infected with it.


Nematodes are human-transmitted parasites in cats that may not show any symptoms. In the later stages of the pathology, the cat begins to lose weight dramatically. Kittens are in a big risk zone. It is worth considering that the treatment that is carried out against these worms is effective only in relation to sexually mature individuals, but it does not give results in the fight against larvae. Therefore, this pathology can be transmitted from the mother to the kitten during labor.

After the appointment of treatment, the owner should devote all his ability to caring for the animal in order to exclude re-infection of the pet.

To protect the pet from health problems caused by the vital activity of parasitic forms, the owners need to regularly carry out prophylaxis. For this, drugs are used in the form of tablets, suspensions, and sometimes injections are prescribed. Most of the internal worms are transmitted to humans, therefore, if parasitic forms are found in a cat, the person should also donate feces for analysis.

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