Yes, certain types of algae can be harmful to dogs. Blue-green algae, also known as cyanobacteria, can produce toxins that are dangerous if ingested. These toxins can lead to serious health issues, including liver damage, neurological problems, and even death in severe cases. Symptoms of algae poisoning in dogs may include vomiting, diarrhea, lethargy, seizures, and difficulty breathing. It's important to keep your dog away from stagnant water bodies where algae blooms are present, especially during warm months when blooms are more likely to occur. If you suspect your dog has ingested harmful algae, seek veterinary care immediately.

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Topics covered in this question:

Dog Health Dog Care Pet Safety Toxic Plants Algae Poisoning