Does the size of the hair follicles, i.e. large vs small, determine the outcome of a hair transplant? If the follicles are larger do they cover more area or look thicker?
You have hit upon an important factor in creating an illusion of density through hair transplant surgery. Yes, hair shaft diameter does play a role in covering a balding scalp. Coarse hair will cover a lot more real estate than fine hair.
The article, How Hair Characteristics Impact Hair Transplant Results from our Hair Loss Q&A Blog provides a more detailed analysis and examples of hair transplantation surgery on patients with both coarse and fine hair.
David (TakingThePlunge) - Assistant Publisher and Forum Co-Moderator