08/30/2026
A follicle and a follicular unit are not the same thing. 👀
A follicle is one individual structure that produces one hair. A follicular unit is the natural group of 1 to 4 follicles that grow together from the same small opening in the scalp.
Why does this matter?
Hair density is measured by follicular units, not just individual hairs. During hair loss, follicles within a unit can miniaturize one at a time, causing a 4-hair unit to gradually become a 3, 2, or 1-hair unit.
It also changes how hair transplant numbers should be understood. One graft usually represents one follicular unit, but that graft may contain multiple hairs.
Before booking a procedure, always ask:
• How many grafts will I receive?
• What is the average number of hairs per graft?
• What size units will be used along the hairline?
• Are the numbers referring to grafts or individual hairs?
Save this carousel before your next consultation and share it with someone researching hair restoration.