Whenever I apply sunscreen, I ensure to add extra over my chest reconstruction, and lower surgery donor site scars. And I spray on scalp/thin hair sunscreen on top.
I can’t recall a surgeon pointing out that scars don’t tan and return to their previous lighter colour like skin does.
Annually, someone who healed from chest reconstruction some time ago learns that heal as we may, scar tissue doesn’t become skin over time; it remains scar.
It’s not a big deal; I’d be applying sunscreen anyway. But however much I take my current bodily shape for granted, in warmer weather it’s a near daily reminder of my medical history.