Your data on MRCVSonline
The nature of the services provided by Vision Media means that we might obtain certain information about you.
Please read our Data Protection and Privacy Policy for details.

In addition, (with your consent) some parts of our website may store a 'cookie' in your browser for the purposes of
functionality or performance monitoring.
Click here to manage your settings.
If you would like to forward this story on to a friend, simply fill in the form below and click send.

Your friend's email:
Your email:
Your name:
 
 
Send Cancel

Owners urged to keep dogs away from blue-green algae
Blue-green algae can contain toxins that are potentially fatal to dogs when ingested.
BVA’s advice follows recent reports of algal bloom in the UK.

The British Veterinary Association (BVA) has issued a warning to pet owners about blue-green algae, urging them to keep their dogs safe when walking near freshwater bodies this summer.

The warning comes after a number of recent reports of algal bloom in lakes, ponds and rivers around the UK, including the Lake District and Shetland Islands. The UK Centre for Ecology and Hydrology’s (UKCEH) Bloomin’ Algae app identifies confirmed sightings and people are encouraged to submit details and photographs of suspected sightings. 

BVA’s tips for dog owners are:
  • Look out for warning signs near water bodies
  • Keep pets on a lead around water bodies known or suspected to have a blue-green algal bloom, and don’t let pets swim in it or drink from it
  • Wash a dog’s coat thoroughly with clean water after swimming outside 
  • Seek emergency veterinary treatment if you’re concerned your pet may have ingested toxic algae.
Blue-green algae, also know as cyanobacteria, can appear as green or greenish-brown scum on the surface of freshwater. The bacteria can contain toxins that can prove fatal to dogs when ingested even in small quantities. 

BVA president Malcolm Morley said: “Lots of dogs love water and won’t hesitate to dive straight in when they see a lake or go for a paddle in a pond. But toxic blue-green algae is very difficult to identify and, if ingested, can make dogs seriously unwell – and can even be fatal. We’re urging pet owners to keep their dogs on leads near water bodies where blue-green algae has been confirmed or, if unsure if a water body is safe, to keep them away from it completely. It may seem a shame to spoil your dog's fun, particularly if they are used to swimming somewhere, but if you are unsure it is safe, it is not worth the risk. 

“Being aware of the symptoms of exposure is also vital as there is no known antidote for the toxins and prompt treatment is critical to help give a chance of recovery. Symptoms can appear within a few minutes or hours of exposure, and commonly include vomiting, diarrhoea, drooling, disorientation, trouble breathing, seizures, and blood in faeces. If you have any concerns or are worried your pet may have had contact with blue-green algae, speak to your vet as soon as you can.”

Become a member or log in to add this story to your CPD history

Webinar to explore AMR in vet dentistry

News Story 1
 The WSAVA has invited veterinary professionals to a webinar on responsible antibiotic usage in dentistry.

On 19 November 2025, at 1am, Dr J Scott Weese and Dr Brooke Niemiec will share the latest advice for antimicrobial use. They will present research on oral bacterology, and explain how attendees can choose appropriate antibiotics.

The session will cover pre-, intra- and post-operative guidelines, with recommendations for various pathologies.

The webinar is designed to support veterinary professionals to make informed decisions and tackle antimicrobial resistance.

Attendees can register here

Click here for more...
News Shorts
Dechra launches checklist for veterinary sustainability

Global animal health specialist Dechra has announced the world's first Veterinary Green Theatre Checklist (VGTC) to help make surgery more sustainable.

Endorsed by leading veterinary organisations, including the BEVA, BVNA and RCVS Knowledge, the checklist is designed to reduce the environmental footprint of veterinary care, while supporting better animal health outcomes.

The checklist was launched at the World Congress of Veterinary Anaesthesia and Analgesia in Paris and will be followed by an internal training and awareness campaign. For more information, visit dechra.com