What Is DHI Hair Transplantation? Step-by-Step Procedure, Recovery, and Results

DHI hair transplantation is a modern hair restoration technique in which follicular units (grafts) are directly implanted into the recipient area using a special implantation pen without opening channels, ensuring millimetric control of angle–direction–depth. The aim is to achieve a natural and soft transition in the hairline, provide high density in limited areas, and preserve graft vitality for permanent results. In this guide, you will find the definition of the DHI method, candidate profile, advantages, procedure steps, recovery process, risk management, and aftercare recommendations.

What is DHI Hair Transplantation?

DHI (Direct Hair Implantation) refers to the method in which follicular units extracted from the donor area with a micromotor are loaded into a Choi-like implantation pen and directly implanted into the recipient area without the need for incisions. Since the channel opening and implantation steps are combined, the time grafts spend outside the body is reduced, improving tissue compatibility and graft survival rate. Working with single grafts in the hairline provides a significant advantage in preserving naturalness and symmetry.

Who is it Suitable For?

DHI hair transplantation is ideal for candidates with sufficient donor capacity, stabilized hair loss, good overall health, and realistic expectations. The Norwood scale for men and the Ludwig scale for women are used for evaluation. If iron or vitamin D deficiency, thyroid disorders, or skin conditions exist, they should be treated before the procedure. DHI stands out for hairline design and density increase in small areas, while in wider bald areas it can be combined with Sapphire FUE.

Advantages of DHI

Graft vitality: Minimizes the time grafts remain outside the body.
Natural hairline: Allows detailed and controlled implantation with single grafts.
High density: Provides visual fullness in small areas.
Less trauma: Micro-level procedure ensures a more comfortable recovery.
Partial shaving option: May shorten the return to social life.

Comparison of DHI, FUE, and Sapphire FUE

In classic FUE, channels are opened first and then grafts are implanted. In DHI hair transplantation, channel opening and implantation are performed simultaneously, providing more controlled angle and direction management, though the procedure time may be longer. Sapphire FUE, on the other hand, uses sapphire blades to create precise incisions, offering a faster recovery and advantages for large areas. Most clinics combine these techniques according to the patient’s needs.

Pre-Operative Preparation

Blood-thinning medications and supplements are temporarily stopped.
Smoking and alcohol are discontinued at least 5–7 days before the operation.
If dandruff/dermatitis is present, appropriate shampoo and treatment are applied.
Density mapping and hairline design are documented before the procedure.

Stages of DHI Hair Transplantation

1) Planning

Donor density, hair quality, and hairline design are determined.

2) Graft Extraction

Grafts are harvested with a micromotor and preserved in special solutions.

3) Implantation with Pen

Grafts are directly implanted into the desired angle–direction–depth using the implantation pen.

4) First Wash and Bandage

The area is protected after the procedure, and the first wash is usually performed on the 2nd–3rd day.

Recovery Process

First 48 hours: Mild swelling and redness may occur.
7–10 days: Scabbing resolves.
2–8 weeks: Shock loss phase occurs.
3–6 months: New hairs start to grow.
6–12 months: Density and volume increase.
12–18 months: Crown (vertex) maturation is completed.

Risks and Precautions

Complications such as infection, redness, uneven density, or ingrown hairs are rare. A sterile environment, regular follow-ups, and proper care minimize risks.

Aftercare

Sleeping on your back with the head elevated is recommended for the first week.
Gentle washing with special lotion and shampoo should be performed.
Avoid sun exposure, sauna, swimming pools, and the sea for a while.
Smoking and caffeine should be limited.
Avoid strenuous exercise for the first two weeks.

Cost and Clinic Selection

The price varies depending on the number of grafts, technology used, team experience, and clinic standards. When choosing a clinic, consider sterilization standards, case photos, realistic consultation, and the availability of post-operative follow-up.