09/10/2025
🌟 Case of the Month: Ruby’s Swollen Chest 🌟
Recently, we were called out to see Ruby, a lovely mare who had developed a very large swelling on her chest after what was most likely a kick. The swelling (a hematoma) had become uncomfortable and was affecting her ability to move freely.
🔍 What is a Hematoma / Seroma?
• A hematoma is a collection of clotted blood under the skin, usually after trauma such as a kick or a knock.
• Over time, a hematoma often separates into clotted blood and serum (the liquid portion of blood). At this stage, it’s called a seroma.
• These swellings are most often found on the chest, upper limbs, stifle, hamstrings, or abdomen.
💉 Ruby’s Treatment
In Ruby’s case, the swelling was large enough to impact her comfort and movement, so we drained it. She was also given antibiotics and pain relief to support healing and reduce the risk of infection.
With follow-up care, Ruby has been recovering well — and you can see the difference in the before, during, and after photos below! 📸
✅ Key Takeaways for Horse Owners
• If you notice a sudden, large swelling on your horse, don’t panic — but do get it checked.
• Small hematomas/seromas may reabsorb on their own over time.
• Larger swellings, or those affecting movement, often need veterinary attention and sometimes drainage.
• After treatment, scar tissue may remain for a time, but it usually resolves.
👉 Hematomas and seromas are rarely an emergency, but they can be alarming when first noticed. If you find an unusual lump or swelling on your horse, give our team a call — we’re always happy to advise on the best course of action.
🐴❤️ Ruby’s case is a great reminder that with timely treatment and proper care, horses can bounce back quickly from these dramatic-looking swellings.