What is the "Fox Test" in Hair Transplant?

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The Fox Test is carried out during follicular unit transplantation to see if a patient is suitable for direct extraction.

It is important to note that the tightness with which follicular units are held in dermis varies and hence FUE may not be suitable in all patients. Therefore, before undertaking any patient for FUE hair transplant, the surgeon should ascertain whether the patient is a suitable candidate for FUE or not. In FOX test, the surgeon takes out a few (about 100) grafts from the donor area and then evaluates how many complete/incomplete follicular units are extracted. If the extraction is easy and complete units are extracted, then the surgeon should go ahead with FUE; otherwise shift onto strip technique.It is important to note that the tightness with which follicular units are held in dermis varies and hence FUE may not be suitable in all patients. Therefore, before undertaking any patient for FUE hair transplant, the surgeon should ascertain whether the patient is a suitable candidate for FUE or not. In FOX test, the surgeon takes out a few (about 100) grafts from the donor area and then evaluates how many complete/incomplete follicular units are extracted. If the extraction is easy and complete units are extracted, then the surgeon should go ahead with FUE; otherwise shift onto strip technique.

Source: Follicular Unit Extraction Hair Transplant

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