Warmer weather and longer walks can trigger a sharp spring spike in fleas, ticks and worms. Dr Sean McCormack, Head Vet at dog food subscription brand Tails.com, shares expert tips on the biggest parasite risks face during summer, the warning signs many people miss, and the practical steps that can help keep dogs protected during peak parasite season. 1. Check for ticks immediately after every walk Ticks are something many still underestimate, especially during warmer months when dogs are spending more time in long grass, woodland and parks. The problem is that ticks don’t just irritate; they can also carry infections which may affect both pets and humans. Because they attach so quietly, owners often don’t realise their dog has picked one up until much later. One of the best habits you can build during summer is doing a quick full-body check after walks, especially if a dog has been through grass or dense vegetation. Catching ticks early makes a huge difference. 2. Don’t assume fleas are just an outdoor problem Warmer summer conditions create the perfect environment for fleas to multiply, and once they’re inside the home, they can quickly spread through soft furnishings. One flea can turn into a much larger infestation because eggs don’t just stay on the animal; they fall into carpets, bedding and furniture, where they continue developing unnoticed. A lot of dogs won’t immediately show dramatic symptoms, particularly in the early stages. That’s why prevention and regular checks are so important during warmer months. 3. Watch for subtle worm warning signs During spring and summer, dogs naturally explore more. They’re interacting with more animals, drinking from puddles or stagnant water, and spending longer outdoors, all of which can increase parasite exposure. Many don’t realise worms aren’t always obvious. Dogs can carry intestinal parasites without immediately showing severe symptoms. Subtle signs such as low energy, digestive upset, scooting, bloating or changes in appetite can sometimes point to underlying parasite issues. 4. Support resilience with everyday nutrition A dog’s immune system and overall resilience are heavily influenced by their general health. Good nutrition won’t prevent parasites on its own, but it can support skin condition, energy levels and recovery if a dog does become unwell. Dogs with poor nutrition or underlying health issues may struggle more with skin irritation, inflammation or recovery from parasite-related problems. 5. Do a quick daily summer parasite check A quick two-minute check after walks can genuinely make a difference. Looking through dogs’ coats, checking paws and ears, washing bedding more regularly during summer, and monitoring scratching or skin changes can help owners spot problems more easily. Parasites are much easier to manage when caught early, and summer is when owners need to be most switched on because exposure increases so significantly. Post navigation Six tips to transform your garden into a dog-friendly oasis Rethinking walk times in hot weather