Spring is when many pets in Katy, Texas, spend more time outside, have longer walks, backyard games, neighborhood meetups, and weekend adventures. It’s also the season when parasites seem to “suddenly” show up. In reality, fleas, ticks, and mosquitoes don’t appear overnight. They build momentum as temperatures rise, rain returns, and wildlife becomes more active. A proactive plan now can save your pet from weeks of itching, uncomfortable skin infections, or far more serious disease later.
At Circle B Veterinary Hospital, we treat prevention as a year-round partnership. Spring is the perfect reminder to check that your pet’s protection is current, your dosing is correct, and your plan truly matches your lifestyle.
In many states, parasite season has a clear “on” and “off” switch. Texas is different. Mild winters and warm stretches can keep fleas and mosquitoes active longer than people expect, and ticks can persist in brushy areas, parks, and tall grass even when it cools down. Spring simply increases exposure: pets are outside more, lawns get watered, and mosquitoes find more standing water after rain.
That’s why we often see two common patterns in early spring: pets who missed a month or two of prevention and now have breakthrough issues, and pets who are on a product but need a better match for their routine (like frequent hiking, dog parks, daycare, or a multi-pet household). The goal isn’t perfection, it’s consistency and the right fit.
Heartworm disease is transmitted by mosquitoes. Once infected, dogs can develop worms that live in the heart and lungs, leading to coughing, fatigue, exercise intolerance, and long-term damage if not addressed. Prevention is much easier (and far less stressful) than treatment, which is why monthly heartworm prevention is so important in the Katy area.
Heartworm testing matters, too, even for pets on prevention. Missed doses, incorrect dosing for current weight, vomiting after a dose, or timing gaps can create openings for infection. Testing helps confirm that prevention is working as intended and catches infection early, when a plan for care is clearer. If your dog is due for a test, spring is an ideal time to do it, before mosquito activity peaks.
Cats are less commonly infected than dogs, but they are not “immune.” Heartworm infection in cats can still cause serious respiratory signs and can be difficult to diagnose. If you’re unsure whether your cat needs heartworm prevention, your veterinarian can help you weigh risk factors and choose the safest approach.
Fleas are more than a nuisance. They can cause intense itching, trigger flea allergy dermatitis (where even a few bites cause major inflammation), and contribute to secondary skin infections from scratching and chewing. Fleas also reproduce quickly. Once they establish themselves in the home, they can be difficult to eliminate, especially in households with multiple pets.
Ticks are a different concern. They can be hard to spot, especially on darker coats, and they may transmit disease depending on species and region. Ticks also tend to “surprise” families in spring because pets start exploring taller grass, trails, and wooded edges again. Preventing tick attachment is far easier than relying on a daily full-body tick check, though tick checks are still a great habit after outdoor play.
If your pet is itching, losing fur, developing scabs, or shaking their head, parasites may be part of the picture even if you don’t see them. In Texas, fleas can mimic allergies, so staying consistent with prevention often improves skin comfort and reduces flare-ups.
The best parasite prevention plan is the one you can stick with and the one that matches your pet’s real-world exposure. During a wellness visit, Circle B Veterinary Hospital can help you choose products and testing intervals based on your pet’s age, weight, medical history, and daily routine. A few lifestyle questions make a big difference:
From there, your veterinarian can recommend an option that fits your pet and your family, whether your top concern is mosquitoes, fleas, ticks, or all of the above. They can also confirm correct dosing for current weight, advise on safe combinations if you use multiple products, and help you set refill reminders so you don’t accidentally miss a month.
Spring is a great time to refresh routines, but parasite prevention works best when it’s steady year-round, especially in Katy, Texas. Heartworm prevention plus regular heartworm testing, consistent flea and tick control, and a plan tailored to your pet’s lifestyle are the building blocks of keeping your pet comfortable and healthy.
If you’re not sure what your pet should be taking, if you’ve missed a dose, or if your dog is due for heartworm testing, Circle B Veterinary Hospital is here to help. Call today to schedule a wellness visit, and let’s build a simple prevention plan that keeps your pet protected through spring and every season after.