Dogs Trust warns of dangers of blue-green algae for dogs this summer - The Kidderminster Standard
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Dogs Trust warns of dangers of blue-green algae for dogs this summer

Kidderminster Editorial 19th Jul, 2025

DOGS Trust Evesham are warning dog owners about the toxicity of blue-green algae for dogs, writes Hannah Taylor.

Due to the prolonged hot weather, there have been concerns about the increase in blue-green algae forming in lakes, ponds and rivers.

Blue-green algae can be highly toxic to dogs, even if only a small amount is ingested.

And in some cases, it can prove fatal due to its effect on the liver and neurological system.

Charlie Matthias, Senior Veterinary Surgeon at Dogs Trust, said: “We’re urging all dog owners to avoid letting their dogs swim in or drink from lakes or rivers that look green, scummy, have surface foam or have warning signs nearby.

“Blue-green algae is not always easy to spot, so if in doubt, don’t let your dogs swim in or drink from the water.




“And, if you are walking your dog near water where blue algae have formed, keep them on a lead.”

Symptoms of blue-green algae poisoning can appear within minutes and include: vomiting, diarrhoea, excessive drooling, muscle tremors, seizures, breathing difficulties and collapse.


Owners who suspect their dog has been exposed should thoroughly wash them and contact a vet immediately.

Unfortunately, there is no antidote for the toxins but if caught early enough, your vet may be able to flush the toxins from their body.

Visit dogstrust.org.uk for more information and advice about keeping dogs safe this summer.