Whether your cat stays indoors or spends time outdoors, it can become a host for various internal parasites such as roundworms, tapeworms, and hookworms. Kittens often get worms from their mother through nursing, while adult cats might unknowingly ingest worm eggs or eat insects that are contaminated. Since cats are prone to worm infestations, it's important to recognize the signs so you can take your cat to the vet early. If left untreated, worms can lead to symptoms like dull fur, bloated abdomen, or, in rare cases, severe fatigue. Getting rid of worms is relatively easy if you use the correct deworming medication. With a bit of knowledge, you can also easily determine if your cat has worms.
Steps
Symptoms

- This could be due to dehydration or poor nutrient absorption caused by the parasites.

- To check your cat's gums, place the cat on your lap or beside you. Gently hold the cat's head with one hand under its jaw and the other behind its ears. Use your finger to lift the upper lip to expose the gums above the teeth.
- If the gums look pale, you should take your cat to the vet as soon as possible.

- Black, tarry stools may indicate blood loss due to hookworms attaching to the cat's intestines.
- Diarrhea can occur if worms take up space in the intestines and hinder digestion.
- If your cat has diarrhea for more than 24 hours or you see fresh blood in the stool or tarry black stools, it's time to visit the vet.

- Worms may cause vomiting by obstructing the flow to the stomach or irritating the stomach lining.

- This could be due to various factors such as intestinal inflammation, stomach pain, or the physical space worms take up in the intestines.

- Similar to vomiting, bloating is a common sign and can have many causes. However, this symptom is alarming enough to warrant a visit to the vet, regardless of the underlying cause.

- Lethargy is also a symptom of many other health issues, so it's important to take your cat to the vet for a checkup.
- As someone who knows your cat's usual energy levels, it’s vital to track any sudden drops in activity or playfulness.
Evidence

- Tapeworms may leave egg sacs attached to the surface of the stool. These sacs resemble sesame seeds or cucumber seeds, and may sometimes move or wriggle.
- It is often difficult to spot an entire tapeworm in your cat's stool, but if visible, they appear as flat, cream-colored worms made up of segments. Adult tapeworms can grow up to 60 cm long.
- Roundworm eggs are typically too small to see with the naked eye, but sometimes a whole roundworm may pass in the stool or even be vomited up. Roundworms resemble spaghetti: long, smooth, and about the size of a piece of pasta. Adult roundworms typically measure 7.5-15 cm long.
- Hookworms are also very small and often go unnoticed. Adult hookworms are typically only 2-3 mm in length, making them difficult to detect.


Testing

- Each type of worm lays eggs that have distinct shapes, so this is the most effective method to identify which worms your cat might be infected with.
- When calling the vet, be sure to describe any symptoms your cat is showing.

- Worm eggs are easy to store, but it’s best to keep the sample in a cool, dark place, like a garage or a shaded shed.
- Do not store the stool sample in a food preparation area, and be sure to wash your hands thoroughly after handling it.
- To reduce the risk of a false negative result, some vets may request a pooled stool sample, meaning you'll collect three separate stools over three days and place them in the same bag.

- If your cat is infected with worms, the vet will prescribe medication. Follow the vet’s instructions for administering the medication, and your cat's condition should improve soon.
Advice
- You should be aware that cats can become hosts to certain types of worms, especially roundworms, without showing any symptoms of illness. However, if the worms reproduce and accumulate in the intestines, they can absorb nutrients, depriving your cat of essential vitamins and minerals. Over time, this can negatively impact your cat’s health. Regular veterinary checkups are important to prevent this and other health risks.
- You can help reduce your cat’s risk of parasitic infection by keeping their litter box clean. Remove solid waste daily and regularly disinfect the litter box with a small amount of bleach diluted with water (1:30 ratio) or a mild dish soap.
- Vacuum your home at least once a week to prevent fleas.
Warning
- If you suspect your cat has worms or have already tested for worms, be sure to wash your hands thoroughly after handling the litter box and dispose of the waste. Keep young children away from the cat until you have taken it to the vet for treatment.
- Keep in mind that sometimes a negative stool test result can be misleading. Some parasites lay eggs inconsistently, so even if your cat is infected, there might not be signs in the sample you collected. Multiple tests may be required to diagnose certain parasites.
