The number of sessions varies, and will depend on the:
- Area of scalp to be treated.
- Number of follicular unit grafts desired.
- Density of hair desired by the patient.
- Individual characteristics such as coarseness or fineness of hair v/s a particular area of bald scalp.
- Current stage of hair loss and future possible hair loss.
- Timeframe in which patient wishes to replace lost hair. Some patient prefer to go in stages.
- The laxity of the scalp donor area as well as the follicular unit density in the donor area of the individual.

An average full length strip FUHT session in a previously non transplanted scalp varies from 3000 to 6000 grafts (average 4500 grafts). A second FUHT session can be performed after 1 year. It will usually yield less grafts then the first session (2000 to 4000 grafts).
The above estimates assume that
- all procedures have been performed at our clinic
- the patient is of Indian or Caucasian descent.
People of Far East (Asian descent - Japan, Korea etc.) and Negroid descent usually have lower follicular unit density in the scalp donor area.