Grass awns and foxtails: the summer danger every dog owner should know
Grass awns, or foxtails, are the small dry spear-shaped seeds produced by many grasses from June to September. Their shape is anything but harmless: pointed in one direction and covered in tiny barbs, they can only move forward. Once caught in the coat, they burrow into the skin, the ear, the space between the toes or even the nose, and migrate deep without ever backing out on their own. A classic study by Brennan and Ihrke published in 1983 on grass awn migration in dogs and cats (study on Google Scholar) already recorded 182 cases, often complicated by abscesses and draining tracts. Our other care pointers are in the dog care and grooming section.
Areas to check after every walk
During the risky season, go over your dog after every walk through long grass: between the pads and toes (sudden limping or persistent licking of a paw is a signal), the ears (violent head shaking, tilted head), the eyes (a weepy, closed eye), the nose (bursts of sneezing) and the whole coat, especially in long-haired or curly-coated dogs.
Why it is an emergency
A grass awn does not dissolve and does not reverse: it keeps moving through tissue, causing pain, abscesses, and even damage to internal organs if it travels far. Removed early, it comes out easily; found late, it may require surgery. Faced with sudden limping, ear discomfort or a burst of sneezing after a walk, do not delay a visit.
Reducing the risk
Avoid tall dry grass at walk time, check and brush the dog on returning, and have the hair between the pads trimmed on the breeds concerned. The same summer outings also expose the dog to other heat risks: see our guide on hot pavement and paw pads and our equipment tips in the travel and safety section.
Frequently asked questions
Are all dogs concerned?
Yes, but long-haired dogs, spaniels and hunting dogs that roam fields are the most exposed.
Can I remove a grass awn myself?
Only if it is still superficial and clearly visible in the coat. Once it has lodged in the skin, an ear or an eye, it is a job for the vet.
When should I be most watchful?
From late spring to late summer, when grasses dry out and release their awns.
This guide is part of Planète Pets’s Dogs universe. Our advice is general in nature: for any health concern, your veterinarian remains the only reference.