What should I do if my dog’s wound has a bad smell and swelling? | arlo.® Atlas
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Overview
If your dog’s wound smells bad and looks swollen, it’s a sign something isn’t right and it should be taken seriously. The smell often means there’s bacteria building up, while swelling can happen with irritation, trapped fluid or an infection, but you can’t tell the exact cause just by looking.
Start with a calm check of the wound, keep your dog from licking or scratching it, and arrange veterinary advice if the swelling is worsening, the smell is strong, or your dog seems painful or unwell.
Things To Check
1. Look at how quickly the swelling has appeared and whether it’s getting bigger.
2. Check for discharge, pus, bleeding, broken skin, scabs or a wet surface.
3. Notice the smell. A strong, unpleasant odour can suggest the wound needs prompt attention.
4. Feel gently around the area for heat or tenderness, but don’t press hard.
5. See whether your dog is licking, chewing, scratching or guarding the area.
6. Watch for changes in your dog’s behaviour, appetite, energy or comfort.
7. Check whether the wound is near a joint, paw, face, tail or another area that moves or gets dirty easily.
8. Think about whether the wound could have been caused by a bite, thorn, cut, scrape or trapped foreign material.
Common Causes
The most common cause is a wound that has become infected, especially if it has been kept moist, licked, contaminated by dirt or left without proper cleaning.
Swelling can also come from inflammation as the body reacts to injury, even before infection fully develops.
Sometimes a small puncture, bite wound or trapped debris can look minor on the surface but seal over and build up bacteria underneath.
Less commonly, a wound may be irritated by repeated licking, poor drainage or a reaction to something that was originally in the skin.
What To Do
Prevent licking or scratching as much as you can, since this can make the wound worse and add more bacteria to the area.
Keep the wound clean and dry, and if you’re unsure how to clean it safely, avoid using random household products that could irritate it.
Check the area once or twice a day so you can spot any change in smell, swelling, discharge or colour.
Keep your dog rested and avoid muddy ground, swimming or rough exercise until the wound is properly assessed and settled.
If you can do so safely, note when the swelling started, whether it’s increasing and whether your dog seems sore, as this can help your vet.
When To Contact A Vet
Smelly swelling around a wound is a good reason to contact your vet, especially if it’s getting worse, your dog seems painful, or there’s discharge, heat or spreading redness. If your dog is lethargic, off food, feverish, or the wound was caused by a bite or puncture, seek advice promptly.
Products That May Help
For day-to-day wound and coat hygiene around minor skin issues, a relevant pet care collection can help you keep your dog’s routine simple and organised while you monitor the wound.
Related Questions
Should I clean my dog’s wound at home?
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Why does my dog’s wound smell bad?
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.