FUE thick crusts 6 days post op? (Photo)

It is best to ask your surgeon about post operative care as each doctor has their unique regimen.  Based on photos alone you are not likely washing your scalp enough. 

Please consult with your surgeon and ask him about the post op instructions again. We expect that in between 10-12 days all scabs should have fallen off. They will not damaging for now your new hairs but as soon as possible you should get rid of the scabs.

Thank you for your question.  The grafted hair will grow nicely for first 10-14 days then 50-75% of the hair will shed temporarily The small crusts around the micrographs will fall off naturally at around 10-14 days.  You can wash your hair daily and gently with a mild shampoo.  Try not to remove the crusts and allow them to fall off naturally.  Just looking at your photos it appears that your healing normally.   Discuss your concerns with your surgeon. 

these crusts will not be a problem damaging the new hairs. But scubs would be cleaned at end of second weeks. All scabs should be cleaned with pressured (not gentle) massage to transplant area after 2 weeks.Dont forget that you may wash your head with normal pressure after  second weeks of surgery and if you need you can use a soapy wet towel for massage the scubby area. That works very well to remove scubs 

You need to see your doctor or at least call them about how you should be washing your hair- by now they should definitely not be looking that bad. Usually all the scabs etc. should be off within 7-10 days, occasionally up to 14. 
After a few days you should be gently rubbing your scalp with shampoo + conditioner, which should be loosening the crusts you have stuck to your head.

A I don't like the idea of anyone removing grafts that have scabs on them because we have published a paper in a formal medical journal, that when a person pulls off a scab (crust) from a recipient area in less than 12 days, the risk of losing the graft is very high. Put a shampoo on your head and let it sit for 10-15 minutes, then gently work the crusts with your fingers. This will take days to get the crust off so that you do not disturb the grafts. 

Hello
Please dont worry about the scabs. They should have cleaned up by now, and the reason they are still there, is because you are not applying enough pressure to clean them. The hair is firmly in place, and you absolutely dont need to worry about them falling. So clean properly, with pressure to dissolve the clots. Do not move the clots, or try to dislodge them. They will be out in 2-3 days and you will be all good to go
Dr Amit Gupta