Second FUE: how long after? I had a FUE not many months ago but I am not very satisfied.

If you are considering surgery it would be best to discuss your options with a doctor.  You need to explain to your doctor your goals and expectations. The doctor needs to examine you to give you a better assessment of when it is safe to have another procedure.

I will have to respectfully disagree  with Dr. Rassman. 3600 grafts taken from a donor of average density will not decrease it to the point of not having a second procedure of 3600 grafts or more. Further surgeries would definitely cause a noticeable density decrease. In your case you need to step back and not be so aggressive with having a second procedure. Let these graft grow out for the better 8 to 12 months and then reassess at that point.

It all depends where the hair was initially transplanted. If the the hair was transplanted in the frontal forelock/hairline, it is generally safe for a second procedure in the same area at around 9 months.  For vertex/crown cases it is best to wait a full year before re-grafting.

If you are planning on having a second transplant into the same recipient area it would be best to wait at least 6 months in order to see the growth.  Then, any area with sparse growth may be fine tuned during  a second transplant.  The reason you have to wait for at least 6 months is because by that time you should be able to evaluate for growth from your first transplant. Performing a transplant any sooner may risk putting new grafts on top of an area that is supposed to grow, but isn't visible yet. 

Great question. In your particular case, I will suggest you to wait 10-12 months after the first surgery.Good luck.

Each person is limited as to how many FUE grafts that they can safely get without developing a see-through donor area.  For the average Caucasian that number would be about 3600 grafts with medium weight hair.  More grafts then are better carried out with the strip method of harvesting