Dear Sereja_dd,Thank you for posting your question and photo on realself.com. To give an estimate with confidence, I would need to see you in person. While I can see what appears to be average density at the back of your scalp, donor area can extend to the sides of your head. The size of your head can also be a variable on the size of the donor area. If FUT is also being considered, scalp laxity needs to be evaluated and graded as well. These factors and the varying density per square centimeter along your entire donor area need to be measured. 2,500 grafts in a single session and perhaps up to 3,800 depending on the variables presented. A hybrid procedure could provide an even greater yield. I hope this is helpful. Warm Regards,Bernardino Arocha, MD, FISHRS