What Is Direct Hair Transplant (DHI) Method?

The Direct Hair Implantation technique is the newest technique in hair restoration. It is a natural-looking hair transplant that does not require any incisions to the scalp. This procedure can be done in about an hour and can be done on patients with thinning hair, female pattern baldness, or male pattern baldness.

The most important feature of the DHI (Direct Hair Implant) technique is that it does not require any stitches or incisions. Therefore, it does not leave a scar on the head. In this technique, grafts taken from the back of the head are planted immediately, minimizing the time they are outside and making them healthier and stronger.

The hair follicles taken from the donor area for transplantation are directly transplanted to the areas where the hair will be transplanted with special tips without opening any holes.

Since no scalp is opened in the area to be planted, the number of roots planted increases considerably and more intensive planting can be done.

What is the differences between DHI and FUE methods?

In the FUE technique, the hair follicles are taken together. The grafts taken are put through a healing process before sowing and placed in the opened scalps.

Unlike other planting techniques, no incision is made in the DHI technique. Transplantation is done one by one. Natural channels are opened one by one with a thin needle in accordance with the natural angle of the hair and then hair transplantation is performed. Thanks to these fine needles, graft transplantation can be done at more frequent intervals.

In this way, a more frequent and intensive hair transplant can be performed and the recovery period is painless and shorter compared to other techniques. The density of DHI technique is almost twice as much as other techniques.

5 Highlights Of The DHI Method

1- Needle Tips

0.6, 0.8 and 1 mm tips diameter should be used in the DHI method. In the DHI method of tips larger than 1mm, it will not contribute to sufficient density and natural appearance.

0.6 mm: It is used for single grafts in very fine hair. (It can also be used for eyebrow transplantation)
0.8 mm: It is used for 1 and 2 hair follicles.
1 mm: Used for 2-3-4 multiple grafts.

2- Needle Length

Some implanter needles have depth control. Pen length should be reviewed according to root length. A ratio should be established between the needle size and the graft size. This length should be approximately 30% more than the graft size.

3- Width of Implanter Pen Diameters

Hair follicles may be damaged when placing hair follicles on very narrow pencil tips. If it is too wide, there is a possibility of falling of the graft placed. Slit widths range from 0.2 mm to 0.35 mm.