The itching you're experiencing in a scar that's 10 years old can be attributed to a few different factors.
One potential cause, as indicated by research, relates to the physical properties of the scar itself and its impact on surrounding tissues. Itching can occur because of:
- Pulling of the skin and tissues surrounding the scar: Over time, the scar tissue can contract or adhere to deeper structures, creating tension that leads to itching.
- Excessive scar tissue irritating nerves: Even years later, excessive scar tissue might still be present, potentially irritating the nerves in the surrounding area, causing an itching sensation.
Therefore, while scars are generally considered healed after a significant period, these underlying mechanisms can still contribute to persistent itching.