Heartworm Disease Testing and Treatment in Porter, TX
Heartworm disease is a serious and potentially fatal condition spread by mosquitoes, and Southeast Texas is one of the highest-risk areas in the country. At Porter Animal Hospital, we help protect dogs and cats in Porter, Kingwood, and Humble with routine testing, year-round prevention, and careful, supervised treatment for pets who test positive.
How Pets Get Heartworm Disease
When a mosquito bites an infected animal, it picks up microscopic heartworm larvae. The larvae develop inside the mosquito and are passed to the next pet it bites. Over about six months, the larvae grow into adult worms that can reach a foot long and live in the heart, lungs, and surrounding blood vessels. Because our warm, humid climate allows mosquitoes to thrive nearly all year, pets in the Porter area are at risk in every season, including indoor pets and cats.
Symptoms of Heartworm Disease
Early heartworm disease often causes no signs at all, which is why annual testing is so important. As the disease progresses, dogs may develop a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, weight loss, and a swollen belly. Cats may show coughing, asthma-like breathing problems, intermittent vomiting, or sudden collapse. Any sudden difficulty breathing should be treated as an emergency.
Testing for Heartworm Disease
A simple blood test run in our in-house laboratory detects heartworm infection in dogs, often with results during your visit. We recommend testing every dog annually as part of their wellness exam, even when they are on prevention. If a test is positive, digital x-rays, ultrasound, and additional bloodwork help us stage the disease and evaluate the heart and lungs. Diagnosing heartworm in cats can be more complex and may involve several onsite diagnostic tests.
Heartworm Treatment
Treatment for dogs follows a carefully staged protocol that includes medications to eliminate the worms over several months, antibiotics, anti-inflammatory medication, and strict exercise restriction to reduce the risk of complications. There is currently no approved treatment to kill adult heartworms in cats, so care focuses on managing symptoms and supporting their heart and lungs. Our veterinarians will guide you through every step, with medications available from our pharmacy.
Prevention Is the Best Protection
Heartworm disease is almost completely preventable. Monthly chewables, topical products, or long-lasting injectable prevention keep pets protected year-round. Prevention is far safer and less costly than treatment, and many products also guard against intestinal parasites and fleas. Learn more on our parasite prevention and preventative care pages. Starting prevention early is part of every puppy and kitten care plan. Explore other conditions we treat.
Frequently Asked Questions About Heartworm Disease
How common is heartworm disease in the Porter, TX area?
Heartworm disease is very common in Southeast Texas. Our warm, humid climate supports mosquitoes almost year-round, which puts local pets at high risk.
Does my indoor pet need heartworm prevention?
Yes. Mosquitoes easily get indoors, and indoor cats and dogs can still be infected. Year-round prevention is recommended for all pets.
How often should my dog be tested for heartworms?
We recommend testing every dog once a year, even if they are on monthly prevention, to make sure the prevention is working.
Can heartworm disease be treated?
In dogs, yes. Treatment is effective but involves several months of medication and strict rest. In cats, treatment focuses on managing symptoms because there is no approved medication to kill adult worms.
Can heartworms spread from pet to pet?
No. Heartworms are only spread through the bite of an infected mosquito, not directly between animals.
What happens if I miss a dose of heartworm prevention?
Give the dose as soon as you remember and call us at (281) 354-8099. We may recommend a follow-up heartworm test in several months.
When should my puppy or kitten start heartworm prevention?
Most puppies and kittens can start prevention by eight weeks of age. We’ll set up the right plan during their first visit.
Protect Your Pet From Heartworms
A quick test and the right prevention can save your pet’s life. Call Porter Animal Hospital at (281) 354-8099 or request an appointment online to schedule heartworm testing in Porter, TX .