Has anyone tried breast fat grafting?

Hello.

Since I was young, I have had relatively large breasts, so I didn't have any concerns.

I've always been a C or D cup, so I don't think I've ever considered fat grafting for my breasts.

However, after giving birth... having two children, my breasts sagged deeply.ㅠ

My chest sagged so much that it looked like my grandmother's, and it made me feel sad.

It's too hot in summer to wear corrective underwear, and it doesn't shape nicely, so I'm very upset.

Has anyone else experienced sagging breasts like mine and undergone fat grafting?

Are there any others who have had breast surgery later in life like me?

I want to know what side effects there are.

Thank you for your valuable advice.