Enterobius vermicularis, Pinworm

Enterobius vermicularis is a pinworm that can be detected in stool. It is not considered a normal part of the dog’s gut microbiome and is not a typical intestinal worm infection in dogs. Detection in a dog’s stool may reflect exposure to contaminated material, household surfaces, bedding, soil, or faecal contamination rather than an established dog infection. Enterobius vermicularis is mainly known as a human pinworm, and dogs are not considered its usual host. A finding in a dog sample should therefore be interpreted carefully, especially if it appears without digestive signs or other relevant findings. If digestive signs are present, they may include digestive irritation, altered stool quality, mild abdominal discomfort, or signs that another intestinal issue may be present. A positive or repeated finding may be useful to review with a veterinarian, especially if ongoing digestive signs, hygiene concerns, or shared household exposure are present.