Can You Still Have Hair Transplanted to Thinning Areas If You Are Not Completely Bald?

I am going bald in a pattern for sure but still got hair on the balding area, just thin hair! Can you transplant in to an area which still has hair. On my head I don’t see much space to put new hairs in. Would a transplant damage the hair I still have? So do I have to wait? I am mid 40s

You can transplant hairs to thinning areas and the hairs will grow. But your miniaturized hairs that are at the end of their life, may fall out as a result of the transplant. But you and your doctor need to discuss the potential for shock hair loss, how to prevent it and its risks versus the benefits. You need to be examined by a doctor and have a Master Plan for what you are trying to accomplish with the correct set of expectations. Hair transplants may or may not fit into you Master Plan.