Another version of this question may be: “We both had the same number of hair follicles transplanted, why does he get a denser result?”
Even of the same age and gender, comparing the hair transplantation results of two persons would be like comparing apples and oranges. The most prominent features are the shape of head, and the pattern and extent of hair thinning. But numerous factors have an impact on the results obtained, such as the thickness of hair shaft, the number of hair follicles contained in every hair follicle, the characteristics of hair –whether it is straight, wavy or curly-, color of hair and the contrast between the hair color and the hairy scalp.
Having an equal number of hair follicles transplanted does not guarantee the same results for everyone. Assuming that an equal number of hair follicles are transplanted on an equal extent of site on both of the persons, the person with thicker hair shafts and with a higher number of hair shafts in the follicles will obtain a more satisfying result with a denser hair appearance.
While 4000 follicles with predominantly three thick hair shafts correspond to an average of 10,000 thick hair shafts; 4000 follicles with predominantly a single thin hair shaft correspond to a total of 4000 hair shafts.
Similarly, curly hair shafts give a better impact of camouflage. And as the contrast with the scalp decreases, a denser appearance is obtained; which means, the result of hair transplantation with a combination of gray hair and fair skin gives a denser hair appearance compared to a combination of black hair and fair skin.
The plastic surgeon considers these variables before the hair transplantation operation and makes the best treatment plan to obtain the desired result. Use of a personalized plan and personalized hair transplantation techniques ensure maximum satisfaction regarding the patient’s expectations.