Traces of dried blood after Hair transplantation. Any suggestions?

Some blood or scabbing is normal after any surgery. If you are concerned it is best to check with your doctor for an exam.  Every doctor has a slightly different post operative care regimen. 

I would recommend to use a combination of daily vaseline ointment and saline spry to thin the crusts down. This will reduce the chances of infection and eventually grafts loss. Obviously you should discuss this with your plastic surgeon

It is normal to have a dot of scab at the base of each grafted follicular unit during the first few days post op. Has your doctor given you an aftercare spray to keep the grafts moist and clean? I tend to use liposomal ATP as an aftercare spray every 30 minutes during the first few days. We find that it can keep the grafted area really clean so that many patients can return to work after a week after their surgery with minimal evidence of their hair transplant. I encourage conditioner soaks and contact hair washes from the 6th post-operative day. This tends to remove any remaining scabs by day 10. It would be wise to clarify your own doctor's aftercare routine with them in person. 

As always check with your doctor, but dried blood  5 days after an HT usually just means you are not washing enough or properly. VERY common and usually nothing to worry about. Either way, it has no affect on the grafts which are deep in the skin. HOWEVER, that dry blood CAN become a breeding ground for bacteria so you want to start washing the area as per your doctors instructions. You should be right as rain.Grow well and heal well.

These areas form crusts which connect to the grafts. Good washing is critical. A regular hair transplant should be washed at the day after the procedure with regard to the recipient area, but the FUE donor
area note that it has open wounds which require daily washing with soap and water. Within 3
days of surgery, you can resume full activities, heavy exercises if you wish with FE, not with a strip surgery.
The recipient area requires daily washes as well to keep the recipient area
free of crusts. I generally recommend the use of a sponge and supply my patient
with a surgical sponge to fill with soapy water and press on the recipient area
daily. By repeating this daily, all crusts can be washed off without any fear
of losing grafts. IF any crust are present, use a Q tip and dip it into soapy
water, and roll it on the crusts and that will lift them off without dislodging
them, but never rub them, just roll the Q tip on the recipient crust. I like to
see no evidence of any crusting in the recipient area and the crusts from the
donor area gone in 7-10 days with daily washing,.