Dog-walk safety: blue-green algae and grass seeds

The two-minute summer walk check

A familiar route can change quickly in a hot, dry spell. Water quality can deteriorate, long grass can release sharp seeds and a comfortable morning can become too warm by lunchtime. A two-minute check before and after each walk helps you adapt without giving up the sniffing, exploring and quiet time your dog enjoys.

• Before leaving: check the forecast, local water warnings and your planned route
• Pack: fresh drinking water, a bowl, lead and waste bags
• Near water: follow signs and keep your dog out if safety is uncertain
• In long grass: keep close control and avoid dense seed heads where practical
• Afterwards: check paws, ears, eyes, armpits, groin and feathered fur
• Act promptly: contact your vet after suspected algae exposure or if a grass seed may be embedded

Why dry weather changes a dog walk

The Environment Agency reported exceptionally dry conditions across much of England in July 2026. Its report for 17 to 23 July recorded 13 confirmed algae incidents attributed to drought and dry weather since the start of the year, as well as low river flows and increasing environmental pressure.

That does not mean every pond or river is dangerous. It does mean yesterday's safe-looking route should not be treated as permanently safe. Notices from councils, landowners and environment agencies are more useful than memory, and a different route is the right choice when a warning is in place.

Blue-green algae: choose caution over a closer look

Blue-green algae are bacteria that can produce dangerous toxins. Blooms may look like green or blue-green scum, flakes, foam or paint on the surface, but appearance alone cannot confirm whether water is safe. Wind can also push affected material towards the shore, exactly where a thirsty dog may stop to drink.

Follow every warning sign. Keep your dog on a lead beside affected or uncertain water, and do not let them swim, paddle, drink or investigate scum and debris at the edge. Carrying tap water gives them a safer option after exercise.

Do not enter suspect water to retrieve a toy. Choose another route or a controlled activity at home instead; a paddling pool filled with clean water is easier to supervise.

If your dog may have been exposed to blue-green algae

Treat possible exposure as urgent even if your dog appears normal. Prevent them licking their coat, rinse them with clean water as soon as it is safe to do so and call your vet immediately. Tell the practice where the exposure happened and whether your dog drank, swam or paddled in the water.

Vomiting, diarrhoea, drooling, twitching, breathing difficulty, disorientation, seizures or collapse can occur after exposure, but do not wait for any of these signs before calling. Prompt veterinary treatment gives a dog the best available chance of recovery.

Grass seeds: a small hazard worth checking for

Dry seed heads from long grass can catch in a dog's coat. Their pointed shape can pierce skin or become lodged between toes, in ears, behind eyelids or inside the nose. Once under the skin, a seed can be difficult to find and may cause pain, swelling, infection or an abscess.

Dogs with long or feathery hair around their feet and ears may pick up seeds more easily, but any dog that runs through long grass can be affected. Avoiding the densest patches and keeping fur around paws and ears sensibly groomed can reduce the chance of a seed being missed.

A simple head-to-paw check after every walk

Run your hands gently over your dog while the walk is still fresh in your mind. Look around each eye and ear, then through the fur under the collar, in the armpits and groin. Finish with every paw, spreading the toes carefully and checking around the pads.

A loose seed sitting on top of the coat can be brushed or picked away gently. Stop if your dog is painful or the seed has entered the skin. Do not probe an ear, eye, nose or wound with fingers or tweezers.

Contact your vet if your dog suddenly shakes their head, sneezes repeatedly, develops a sore or weepy eye, limps, licks one paw persistently or has a swelling between the toes. The sooner an embedded seed is assessed, the easier it may be to locate and remove.

Keep heat safety in the same routine

Water and grass are not the only variables. Check the temperature and change the time, length or location of a walk when conditions are uncomfortable. Early mornings and cooler evenings are often better, but there is no single safe temperature for every dog.

Flat-faced dogs, older dogs, puppies, overweight dogs and those with thick coats or existing health problems may struggle sooner. Heavy panting, noisy breathing, weakness, confusion, vomiting or collapse needs immediate action: stop exercise, begin safe cooling and contact a vet straight away.

Skipping or shortening one walk is a sensible care decision. Sniffing games, food puzzles and calm training at home can provide enrichment without asking your dog to exercise in risky conditions.

Turn the checklist into a habit

The safest routine is the one that is easy to repeat: check the route, carry water, keep away from uncertain water and look over your dog when you get home. Save the number for your usual and out-of-hours veterinary practice before you need it.

Wiggly is being built to bring pet profiles, vet contacts, appointments, reminders and everyday care notes into one place. A recurring summer walk check is a small example of how a timely reminder can support calmer, more consistent care.