Just like humans, it’s not uncommon for dogs to ingest water in a pool, ocean, or lake; this can be especially true if you’re playing fetch with them. Although it is not ideal for them to drink this type of water, a small amount shouldn’t cause much concern. However, if they ingest large amounts, it can be dangerous.

Water intoxication is rare, but it can happen, and it is important to recognize the symptoms. When dogs drink too much water, it can cause an electrolyte imbalance, and the sodium in their blood can become diluted. Symptoms can include lethargy, nausea, weakness, and more. However, if you’re by the ocean, there is also the chance your pup could ingest too much saltwater. Saltwater poisoning needs to be immediately addressed by a vet. Signs can range from vomiting and diarrhea to convulsions and seizures.

You can prevent this by watching your pup while they’re in the water and providing enough fresh drinking water. Taking frequent breaks can also help them avoid ingesting water during play.