TL;DR: Grass seed awns are a veterinary emergency because they migrate deep into the ear canal and can cause permanent damage. Seek immediate care if your dog is head-shaking or pawing at their ear.
What is a grass seed awn and why is it dangerous for my dog?
A grass seed, often called an awn or foxtail, is a sharp, arrow-shaped seed head found in long grass. Because of their unique shape and microscopic barbs, these seeds are designed to travel in only one direction: forward. If a seed enters your dog's ear canal, it can quickly migrate deep toward the sensitive eardrum, causing intense pain and potential permanent damage.
Is a grass seed in my dog's ear a veterinary emergency?
- Grass seeds are high-urgency situations because they do not work their way out and burrow deeper with every head shake.
- If left untreated, the seed can puncture the tympanic membrane (eardrum) or cause a severe, deep-seated infection.
- Contact an emergency veterinarian immediately if your dog is frantically pawing at their ear or tilting their head to one side.
How does taking a photo of my dog's ear help with the triage process?
- A clear photo of the ear opening helps the triage nurse assess levels of inflammation, redness, or discharge.
- Visual information allows the clinic to prioritize your case and assess the severity of the situation before you arrive.
- The veterinary team can prepare necessary sedation or specialized extraction tools in advance to expedite treatment.
Clinical Context (Merck Veterinary Manual)
In cases of suspected foreign material such as grass seed within the ear canal, immediate veterinary attention is warranted. Initial examination should be performed in the veterinary clinic, involving gentle flushing of the ear canal to remove exudate. Samples for cytologic evaluation and culture should be obtained prior to flushing. Examination is attempted again after the ear is dried. If the canal is too stenotic for examination, systemic glucocorticoids may be administered for one week to reduce swelling.
Chapter: Dermatology
Source: The Merck Veterinary Manual, 11th Edition (Page 530)