The strawberry hemangiomas tend to grow and then randomly involute.

I also had difficulties with this, especially w/FA being so abbreviated. There is one word in FA that helps, and then I have a link for more info: "grows rapidly and regresses spontaneously by 5-8 years old." Which means it's done with its involution phase by then. This NCBI article helps: The Lessons I Learned from a Hemangioma Clinic TLDR: rapid growth occurs for the first few month, followed by a few months of rest, and then years of involution. Since the question is asking what happens over 5 years, the majority of that time is spent in involution phase. Hope this helps.