Hi,
I researched on this topic from one month and finally decided to get tattoo on my grafted skin.
Age : around 7 months old graft.
I know its not a good idea to get on fresh scar, and it should be healed and scar should be matured.
I felt its healed ( its about 2 X 2 cm graft not bigger one ) but scar wasn’t matured. Not sure, but tattoo looks fine on that. Will update the thread once its firm.
Regards,