Why our dog smells like fish – pet expert explains

If you’ve noticed your dog smelling like fish lately, you’re not alone. According to canine experts, if you come across this, the smell rarely comes from actual fish.

An expert at the Fresh Dog Food brand Years.com suggests that the unusual odour can be linked to underlying issues that aren’t immediately visible. Figuring out what’s really behind the smell could be crucial for keeping your furry friend healthy, comfortable, and happy. 

1) Anal glands

According to the expert, your pooch’s anal glands may not be emptying properly, which is causing the foul smell. A dog’s anal glands produce a strong-smelling liquid for marking territory, and usually empty when they poo.

If they don’t, they can become full and blocked, reported the PDSA. While blockages often happen once, dogs with narrow gland openings, chronic diarrhoea, skin allergies, or who are overweight may have ongoing problems.

Alyssa Ralph, Clinical Animal Behaviourist and Canine Nutritionist, at Years.com said: “Loose stools can prevent the anal glands from naturally expressing, leading to a build-up of fluid and that classic fishy smell.”

Signs that a dog’s anal glands may be blocked, according to PDSA, include:

• Scooting their bottom along the floor
• Licking or nibbling at the anus or lower back
• Showing pain when pooping or when the back end is touched
• Straining to poo
• Suddenly sitting or turning to look at their rear due to discomfort. 

2) Dysbiosis of the oral microbiome

Dysbiosis of the oral microbiome refers to an imbalance of bacteria and other microorganisms residing in the mouth. Normally, the mouth has a healthy balance of “good” and “bad” bacteria that help protect the teeth and gums, but when this balance is upset, harmful bacteria can grow excessively.

Alyssa Ralph commented: “Oral microbiome imbalances and plaque can also produce a fishy odour from the ‘head end’. Brushing your dog’s teeth and using supplements can help restore balance.”

Dog owners can help prevent problems by monitoring stool consistency, avoiding rich or unsuitable foods, maintaining good dental hygiene, and consulting a veterinarian if any persistent odour occurs, as it may indicate an underlying health issue.

Alyssa concludes: “With the right diet, hygiene, and attention, you can solve the mystery of fishy-smelling dogs. It’s not just about smelling fresher, it’s about keeping your dog healthy.”