How DHI works
Individual grafts are extracted from a suitable donor area, checked and prepared before being loaded into an implanter device.
The device is used to place grafts according to the planned angle, direction, depth, spacing and density.


Direct Hair Implantation
DHI usually combines individual follicular-unit extraction with graft placement using an implanter device, commonly known as a Choi implanter pen.
Treatment planning should assess your hair-loss diagnosis, donor area, graft requirements, hair characteristics, treatment area, medical history and possible future hair loss.

Implanter-device hair restoration
DHI is closely related to FUE because donor hairs are normally removed individually. The main difference is the way the grafts are placed into the planned recipient area.
Individual grafts are extracted from a suitable donor area, checked and prepared before being loaded into an implanter device.
The device is used to place grafts according to the planned angle, direction, depth, spacing and density.
Surgeon-led consultation
Send your contact details and preferred treatment area. A member of the Edinburgh clinic team will contact you about arranging an assessment.
Individual donor assessment
DHI suitability depends on donor strength, hair-loss stability, treatment area, graft requirements, medical history and realistic expectations.
The likely cause and pattern of hair loss should be established.
Donor density and hair calibre limit the grafts safely available.
Hairline, crown and mid-scalp areas require different planning.
Ongoing native-hair loss should be considered before surgery.
Surgeon-led planning
Dr Kalra assesses the donor area, hair-loss pattern, treatment goals, hair characteristics, medical history and likely long-term progression before recommending a procedure.
Consultation should compare DHI with FUE, FUT, monitoring and non-surgical options rather than assuming one method is suitable for every patient.
Treatment stages
The precise procedure varies according to the treatment area, donor supply, graft requirements and individual surgical plan.
Hair loss, donor density, medical history and treatment goals are reviewed.
The hairline, crown or mid-scalp treatment area is carefully planned.
The planned donor and recipient areas are numbed for the procedure.
Individual follicular units are removed from the planned donor area.
Prepared grafts are placed using an implanter device according to the planned angle and direction.
Compare hair-transplant methods
DHI, FUE and FUT differ mainly in donor harvesting and graft-placement methods. Suitability depends on the patient, not the marketing name.
Normally combines individual donor extraction with implanter-device placement.
Individual grafts are extracted and placed into planned recipient sites.
A strip of donor scalp is removed and separated into follicular-unit grafts.
Treatment-area planning
Selected hairline cases may benefit from controlled graft angle, direction and distribution.
View Hairline TransplantCrown treatment requires careful graft allocation around the natural whorl.
View Crown Hair TransplantDHI may be considered for selected areas of mid-scalp density loss.
Selected female-pattern cases may be assessed after medical causes and donor suitability are considered.
View Female Hair TransplantDHI may form part of selected gender-affirming hairline-restoration plans.
View Transgender Hair RestorationExisting graft placement, donor depletion and scarring must be assessed before revision treatment.
Healing and gradual growth
Early recovery may include redness, swelling, tenderness, donor sensitivity and temporary recipient-area scabbing.
Protect grafts from rubbing, scratching, pressure and avoid picking scabs.
Implanted hairs may shed after healing before gradual regrowth develops.
New growth may begin gradually after several months and can initially appear fine or uneven.
Thickness, texture and visual density continue developing over subsequent months.
Personalised quotation
DHI cost should be confirmed after consultation and donor assessment. Pricing depends on the individual treatment plan rather than only the name of the procedure.
Patient feedback
Read patient feedback about consultations, treatment-day organisation, communication, recovery support and aftercare.
Edinburgh city-centre clinic
Common patient questions
DHI stands for Direct Hair Implantation. It normally combines individual graft extraction with implanter-device placement.
They are closely related because both normally use individual donor extraction. DHI differs mainly in the graft-placement stage.
DHI does not produce a linear FUT scar, but individual donor extraction can leave multiple small round marks.
DHI is not automatically better. Suitability depends on donor area, treatment goals, graft requirements, hair type and long-term planning.
DHI may be considered for selected crown cases, but the natural whorl and available donor supply require careful planning.
Selected women may be suitable after the cause of thinning, donor quality, scalp health and medical history have been assessed.
Growth develops gradually over several months. Temporary shedding can occur before new growth becomes visible.
Cost depends on graft requirements, treatment area, donor suitability, case complexity and aftercare arrangements.
No. Graft survival, hair growth, density, healing and final appearance vary between patients.
Related information
Start with an assessment
Compare DHI with FUE and FUT, assess your donor area, understand graft limits, costs, recovery and realistic density before deciding whether treatment is suitable.
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