DHI Hair Transplantation
DHI (Direct Hair Implantation) is a hair transplant technique where individual hair follicles are extracted and immediately implanted into the recipient area using a Choi implanter pen. This method allows for precise control over the angle, depth, and direction of each graft, leading to high density and a very natural appearance. It’s often chosen for its suitability in achieving dense packing and for unshaven procedures.
Clinic insight: At Hair Upload Clinic in Istanbul, owner-surgeon Dr. Erkam carefully assesses each patient’s unique hair loss pattern and goals to determine if DHI is the optimal technique for achieving their desired density and hairline.
In the Direct Hair Implantation method, grafts are collected with the medical pen called Choi, which should only be used by professional doctors. Then, thanks to the Choi pen, the hair taken is placed directly on the skin without incision or canal opening.
DHI Hair Transplantation
While these two procedures are performed separately in known hair transplantation methods, the special pen used allows the procedure to be reduced to one and the patient is provided with comfort and convenience. In short, while the hair transplant technique called FUE has three stages, the DHI technique has two stages.
The application aims to increase the quality of hair transplantation in Turkey, to provide an intense appearance, to preserve the existing hair image, and to enable the person who has hair transplantation to return to their daily life without shortening the hair.
Hair Transplantation with CHOI Pen Technique Process
In direct hair implantation performed with the Choi pen technique, the hair follicles taken from the donor area are placed one by one into the Choi pen and given to the hair transplant Turkey specialist for transplantation after each hair follicle is placed.
In the second stage, the hair follicles collected from the donor area are transplanted by the direct hair implantation specialist at an angle of 40-45 degrees, which is the most appropriate angle, by the direction of the previous hair of the person who is transplanted with the pushing feature of the needle.
According to the hair follicle and thickness structure of the person, the tips of the Choi pens can be in different sizes.
What are the Advantages of the Choi Pen Technique?
Choi Pen Technique has several advantages compared to the FUE method.
Hair Transplantation Turkey
If we talk about the advantages of Choi Pen Technique;
- Since the length of time, the hair follicles stay outside of the tissue is much shorter, which ensures healthier transplantation. (Like Sapphire Fue Technique)
- The survival rate of hair follicles taken from the donor area is higher.
- Since the implanted area will be less, the risk of bleeding is lower.
- The recovery period after hair transplantation is shorter, so the patient can return to his daily life in a shorter time. (Like Sapphire Fue Technique)
- This method is more suitable for unshaven hair transplantation. We’ve to shave the back of the head. (Like Sapphire Fue Technique)
- Less bleeding and less edema.
What are the Disadvantages of the Choi Pen Technique?
- The DHI hair transplant with the DHI Implanter Pen takes longer than the “normal” FUE hair transplant
- A maximum of 2500-4000 grafts can be transplanted in one session
- Two sessions may be necessary to achieve the desired hair density (depending on how far the hair loss has progressed)
Is the CHOI Pen Technique a Painful Method?
In this procedure, which is applied by our anesthesiologist and can be adjusted individually, local anesthesia (we’re using needleless anesthesia machine name of dermojet) procedures are performed before hair transplant Turkey with sedative drugs that can be scaled, preserving all reflexes of the person and applying sedation, which is a kind of sleep state.
Our doctor Dr. Erkam implanting grafts for the frontal area. (The most important area is the Frontal area)
However, for our patients who don’t want sedation, hair transplantation can be performed without sedation, at this point the choice is entirely yours. If you want more information on Hair Transplantation in Turkey check here.
Recovery & planning guides:
- Shock loss timeline: what is normal
- Donor area safety
- DHI vs sapphire FUE
- Choosing a clinic in Istanbul
Frequently Asked Questions
What is DHI hair transplantation?
DHI (Direct Hair Implantation) is a hair transplant method where hair follicles are extracted individually and then directly implanted into the recipient area using a specialised Choi implanter pen. This eliminates the need for pre-made incisions, allowing for greater precision.
How does DHI differ from Sapphire FUE?
The primary difference lies in the implantation phase. In Sapphire FUE, channels are opened with sapphire blades before grafts are placed. With DHI, the Choi implanter pen creates the incision and implants the graft simultaneously, offering very precise control over graft angle and direction.
Is DHI suitable for everyone?
DHI is often ideal for patients seeking high-density results, a very natural hairline, or those requiring an unshaven procedure. However, suitability depends on individual factors like donor area quality, hair loss pattern, and overall health, which Dr. Erkam evaluates during consultation.
What are the benefits of DHI hair transplant?
Key benefits of DHI include highly precise graft placement for a natural look, potentially higher graft survival rates due to reduced out-of-body time, and often quicker recovery for the recipient area. It also allows for denser packing in specific areas.
What results can I expect from DHI at HU Clinic?
Patients undergoing DHI at HU Clinic can expect a natural-looking, dense hair growth, with results typically becoming fully visible 12-18 months post-procedure. Our overall success rate is 90-95%, with graft survival up to 98%.
How long does DHI recovery take?
Initial recovery for DHI is generally quick, with most patients returning to light activities within a few days. The tiny scabs from implantation typically fall off within 7-10 days. Full healing and initial growth take several months, similar to other FUE methods.
Sources: ISHRS patient resources.
Medical disclaimer: This page is for education only and does not replace a consultation with Dr. Erkam at Hair Upload Clinic (HUC). Individual assessment is required.
Why Choose DHI Hair Transplantation in Istanbul?
Istanbul has become a global hub for advanced hair restoration, and DHI stands out as a preferred technique for many international patients. At Hair Upload Clinic, we combine the precision of DHI with the expertise of Dr. Erkam and our dedicated team, ensuring a tailored approach that prioritises natural aesthetics and patient comfort. Our boutique model allows us to focus intensely on each case, providing the highest standard of care from consultation through to aftercare.








