@smart.doctor: Why Your Arm Bruises After Blood Draw 🩸 @Dr. Bahaa Dmour - - - - A bruise after an injection or blood draw can happen when a small blood vessel is injured by the needle. Sometimes, instead of only entering the vein, the needle may pass through the vessel wall and create a tiny opening on both sides. After the needle is removed, the body usually starts sealing the area through normal clotting and repair. But if blood leaks out before the vessel fully closes, it can collect under the skin and form a dark, tender, or patchy bruise. Most small bruises after a blood test or injection fade on their own within a few days. But if swelling keeps increasing, pain gets worse, numbness appears, the skin color changes, or the bruise does not improve, it should be checked by a clinician. This animation shows how a tiny needle injury can become a visible bruise under the skin. ---------- #Injection #Medicine #BloodTest #Smartdoctor1 #DrBahaaDmour

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Saturday 23 May 2026 17:57:41 GMT