What should I check if my dog’s wound has pus? | arlo.® Atlas
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Overview
If your dog’s wound has pus, it usually means the area needs attention and may not be healing normally. Pus can happen for a few reasons, including infection, trapped debris, licking, or a wound that’s been irritated and kept open.
You can check a few simple things at home, but you can’t tell the exact cause just by looking. The main goal is to see whether the wound is getting worse, staying the same, or showing signs that it needs vet advice.
Things To Check
1. Look at the colour and amount of discharge. A small amount of thin, pale fluid can look different from thicker yellow, green or creamy pus.
2. Check for redness, swelling, heat or a bad smell around the wound.
3. See whether your dog seems sore, licks it often, or avoids being touched near the area.
4. Check if the wound is open, gaping, crusting over, or repeatedly breaking back down.
5. Notice whether your dog is otherwise well, or seems tired, off food, or less interested in normal activity.
6. Think about whether the wound could have been scratched, bitten, rubbed, or contaminated with mud or debris.
7. Check whether it’s improving, staying unchanged, or getting worse over the last 24 to 48 hours.
Common Causes
The most common reason for pus is a local infection, especially if the wound has been contaminated, licked, or kept damp.
Other common causes include trapped dirt or foreign material, a bite wound that looks small on the surface but is deeper underneath, or a sore that keeps reopening because it’s being irritated.
Less commonly, a wound may struggle to heal because there’s poor blood supply, deeper tissue damage, or another health issue affecting recovery.
What To Do
Keep the area as clean and dry as you can, and stop your dog from licking or scratching it if possible. Check the wound gently once or twice a day so you can spot changes early.
If it’s safe to do so, note the size, colour and amount of discharge so you can tell whether it’s improving. Try to keep walks, outdoor play and muddy environments sensible while the wound is healing.
Do not squeeze the wound or try to remove anything deeply embedded yourself. If you’re unsure whether what you’re seeing is pus, or if the wound keeps producing discharge, it’s sensible to get it checked.
Products That May Help
If your dog needs gentle day-to-day skin and coat care while a wound is being monitored, this collection may be useful as part of your routine.
Related Questions
Is pus in a dog wound always an infection?
How can I tell if my dog’s wound is healing properly?
Should I clean my dog’s wound at home?
Atlas is here to support owners with practical, easy-to-understand guidance. It is not a substitute for professional veterinary advice. If you're concerned about your animal's health, symptoms worsen, or something doesn't feel right, contact your vet.