Eyebrow hair transplant can often be more complex than scalp hair restoration. The complexities mainly reflect on the anatomy of eyebrow hair. The angles, texture and structure of eyebrow hair varies person to person which makes the surgical planning more distinctive.
Features that contribute to the surgical planning of eyebrow hair restoration The main distinct feature of the eyebrow hair anatomy is its dramatically varying directions throughout the tip to the end.
It is important to assess the In the starting point of the brows, the hair that’s close to the nose, a small section is directed upwards. The top of the eyebrow points upwards and outwards, finally slanting downwards, with the hair directions in a cris-cross pattern.
The center of the brow line slopes in a criss-cross pattern which creates an elevating appearance to the region. The natural elevation of the center of the eyebrows adds as an advantage to the surgical planning. The slight swelling from the needles used to plant the hair grafts is camouflaged in this characteristic.
Eyebrow hairs grow in single follicles instead of hair follicular units. Eyebrow hair restoration must be done using the same texture hair. The hair texture resembles the fine vellus hairs in the body.
The angle of the eyebrow hair is lay flat to the surface of the skin, in contrast to the scalp hair which grows about 45° elevated from the surface of the skin. This is a very important characteristic when planting the hair, since they need to lie as low as possible close the surface of the brow skin.
The short growth cycle of the eyebrow hair is shorter than the scalp hair. Eyebrow hair growth cycle spans up to 4 months, wherein scalp hair spans from 5to 7 years. The growth cycle triggers scalp hair to grow much longer. Hence, when scalp hair relocated to the eyebrow region, it often grows longer than normal eyebrows which requires trimming