Tag: Arm lump

It's a common, if slightly alarming, occurrence: a small, firm bump appearing on your arm after receiving a shot. This post-injection reaction affects a significant number of people, and it’s natural to wonder, "Why do I have a lump on my arm after an injection?"

While often benign, a cyst can sometimes be the source of surprising discomfort. Approximately one in five adults experiences a type of skin cyst at some point, and for those located in certain areas, the question, 'Can a cyst make your arm hurt?' is very relevant. Here's a comprehensive look at the issue.

Approximately 70% of bruising after a blood draw is caused by a hematoma. The discovery of a pea sized lump after blood draw can be unsettling, but it is often a common and harmless side effect that resolves on its own with basic at-home care.