Title: Pain in Arm Days after Blood Test - Bright Hub
Headings: Pain in Arm Days after Blood Test
Pain in Arm Days after Blood Test
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The Causes of Pain in Arm Days after Blood Test
It Could Be a Hematoma
Another Cause of Pain: Nerve Injury
Not All Arm Pain after a Blood Test is Serious
References

Content: It Could Be a Hematoma
One cause of pain is a hematoma. A hematoma is a collection of blood that forms outside the vein. During a blood draw when the needle pierces the vein, it can become temporarily damaged causing blood to leak out into the tissue. The leaked blood forms a pocket of blood, which can be painful. It’s not uncommon for the area around a hematoma to turn red or blue, and the surrounding tissue to become swollen. Fortunately, the body gradually reabsorbs the displaced blood cells, and the hematoma slowly resolves – although it can look pretty ugly in the meantime. A hematoma is quite easy to see and is a very visible cause of pain in the arm days after a blood test. Doctors usually recommend that people treat hematomas by applying ice packs, elevating the arm, and taking anti-inflammatory medications for the pain. Hematomas usually resolve in five to seven days. In rare cases, a hematoma can become infected, causing worsening arm pain and redness.