How long after surgery can you wash hair and resume activities without fear of grafts becoming dislodged?
Other than heavy lifting, you can resume all activities in a couple of days after the transplant and run a marathon in 5 days if you like. Dislodging the grafts is not a problem after the second day, unless you do something like pick or scratch the recipient area. I am assuming that the doctor uses very small needles for making the recipient site. If the doctor uses large sites, then grafts can be dislodged beyond 2 days.