Cat Roundworm – Symptoms, Causes and Treatment For Cat Roundworm

Cat worms are intestinal parasitic  that are often quite large  up to 10 to 12 centi meters in length and are present in extremely high numbers within an infected cat. Cat  Roundworms are not  harmful to adult and healthy cats, but large numbers of Cat Roundworm may cause life threatening problems in kittens and older cats. 

Most cat owners do not realize that their cats are coping with an illness unless when the disease has entered into complicated stage making treatment more difficult.

The life cycle of the cat roundworm is complicated. Once they are ingested, the larvae hatch out in the cat’s gastro intestinal tract and move through the muscle, liver, and lungs.

After many weeks, the larvae returns to the intestine back to mature into adults. When the adult worms begin to lay egs to reproduce, eggs pass into the cat stool, thus completing the life cycle of the parasite.

Cat Roundworm Symptoms


  • Colic

  • Lethargy

  • Vomiting

  • Abdominal swelling

  • Abnormal feces

  • Poor nursing (in females)

  • Anorexia

  • Coughing 


Cat Roundworm  Causes


1. Trans-mammary or milk-borne 

The immature roundworms called larvae maybe present in the mother’s mammary glands.during feeding the larvae may pass to kitten as well.

2. From Feces

kittens and adult cats may become infected by swallowing eggs that contain infected roundworm larvas and these eggs may come from the feces of infected cats.

3. Paratenic Host

At paratenic host,  roundworm eggs do not mature but  just transported. If a cat eat the paratenic host, the roundworm  complete their life cycle. Some common paratenic hosts include earthworms, cockroaches, rodents and birds.

Cat Roundworm Treatment

1. Deworming Medication :

The treatment for roundworms is very safe simple and relatively inexpensive. The dead and dying roundworms exit through the stool after deworming medication.As immature larva of roundworms are not killed therefore two to three treatment is required and is done at 2-3 week intervals.

Females on breeding should be dewormed prior to pregnancy and again in late pregnancy. This will reduce the risk of transmission from the mother to new kittens.

Adult cats remain at risk for reinfection with roundworms throughout their lives. Whenever roundworms are seen the cat should be dewormed immediately.

2. Fecal Examination :

Cats that like to hunt mice or indoor outdoor cats  have a fecal examination several times a year. Many heartworm preventive products contain medications that will treat roundworm infections. This is the easy and simplest method for preventing roundworms.


Also read more related to : Cat Ring Worms – Symptoms And Treatment For Cat Ring Worms

3. Insect control :

Controlling of insects and rodents is important since they may act as sources of roundworm infection for cats. Surfaces that may be contaminated with roundworm eggs can also be treated with this bleach solution.

This solution makes the eggs easier to rinse away but does not kill the eggs.Appropriate disposal of cat and dog feces, especially from yards and playgrounds, is important. Roundworm eggs remain alive in the environment for long periods unless if are exposed to direct sunlight or very dry conditions.

4.  Cleaning of Litter Box :

Stool should be removed from litter boxes daily. Litter boxes should be cleaned with a bleach solution mixing one cup of chlorine bleach in one gallon of water to facilitate removal of eggs. Rinse the litter box thoroughly to remove all bleach. 

5. Strict hygiene :

Strict hygiene is especially important for children. Do not let  children to play in potentially contaminated environments. Be careful of the risk that public parks and non covered sandboxes pose. Even though stool may not be visible, roundworm eggs may  present. Sandboxes that have fitted covers are popular and useful to prevent infection of children with roundworms.