Regional Jet 200 ER/LR (CRJ200)
Flight Attendant Current
Physiological - Other
Aircraft Equipment Problem Less Severe; Flight Deck / Cabin / Aircraft Event Other / Unknown
General Physical Injury / Incapacitation
Aircraft; Human Factors
During boarding; a passenger entering aircraft hit head on metal bar on door frame at Main Cabin Door. I can hear when passengers hit their head. The Main Cabin Door of the CRJ200 is very low and the metal bar in the frame cannot be seen easily. Passengers hit their heads VERY often when entering or exiting aircraft. It is normal practice to warn/alert passengers. Sometimes I make announcements also.I asked him if he was ok or wanted to sit down. He said he was fine and continued to his seat; Seat A; maybe row 9; 10; or 11. Throughout the short flight I asked him if he was still ok; and could I bring him anything? Did he need a bandage or ice? He said no. Would he like a beverage (no service flight).  He said no. He continued to say he was fine. On exiting; I apologized for this happening; and he stopped and said 'that should be changed'. He deplaned. Change it or find a way to add bumpers. It happens all the time.
CRJ200 Flight Attendant reported that passengers often hit their heads coming through the main cabin door and that something should be done to lessen the impact on passenger heads.