Why Do I Have Itching After A Knee Replacement?


2 Answers

Florent Lefortier Profile
It's very common to experience some itching after an operation - it's a sign that your body is trying to heal itself. As such, it's nothing to worry about, as it means that you're well on your way to being healthy again!

Why Do Wounds Itch When Healing? Apparently, there are special nerves under the skin that can be irritated in a way that makes us feel itchy.

This type of irritation occurs when we're allergic to something, when something tickles our skin, and when our body is trying to repair itself.

Usually, this happens to alert us of some danger in that area - for example, if a bug is crawling on you, the itching alerts you to the danger before the bug has a chance to bite you.

Theoretically, this could save you from contracting a life-threatening disease, so it's pretty much a survival mechanism.

However, these nerves are also sensitive to cell activity. If you think about it, your skin has to sew itself back together, and the movement that this involves will often irritate the nerves that cause us to feel itchy. It's pretty annoying, but unfortunately, there isn't much we can do about it.

What Other Things Might Happen While I'm Healing?

  • Redness
  • Inflammation or swelling
  • Pain
  • Heat
  • Tingling sensations (again, related to the nerves)
How Long Should The Itching Last?

It's hard to say exactly how long your knee will keep itching for, but fortunately, it's not likely to get any worse. The itching should gradually calm down as you heal, but it might take a few weeks for it to stop completely.

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