Effect on Graft survival of Dense packing

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Check this research paper: double click the picture to read it in separate view

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Well we can do up to 60 per sq. cm but we do not recommend it because of significantly reduced survival rate if transplanted over 30 per sq. cm. Check the attached pdf file of the research paper: For example, if grafts are placed at a density of 50 FU/cm2 but only grow at a density of 40 FU/cm2, the results would still look good to the eye because a density of 40 FU/cm2 looks good. However, in reality this represents a loss of 20 percent of the grafts, which is unacceptable in hair transplantation due to the limited donor supply.

Transplanting Crown

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Transplanting in crown with early hair loss has following drawback in your case at this stage and age of hair loss;
1. The miniaturized weak existing hairs in this area may not be able to sustain the surgery and some of them may be lost sometime after this procedure ( shock loss)
2. The Transplant may be possible between the existing hairs so we can only put small number of hairs without damaging the existing hairs
3. If you lose more hair in future around the area of transplant you will have central are of transplanted hair with surrounding halo of no hairs ; this will not look natural.
4. You can certainly improve the area by use of medications then why you need surgery?

 Photo from: http://www.bernsteinmedical.com/hairtransplantblog/can-the-hair-grafts-be-packed-together-densely/