he can wear a coat - doctors usually wear a coat over their clothes. and remove it during prayer. questioners often frame the question in a manner to elicit a favourable reply. in this case, the questioner has generalised that it is unavoidable for him to have blood or impurities on the clothes and body even though it seems to be a special case. i would like to understand how blood etc. gets on his clothes or body EVERYDAY or so often? as i said, i am not a doctor, but an answer would help me appreciate the situation better.