Conversation: The conversation between human and AI assistant.
[|Human|] Hi , I am a 24 yrs old man . My blood group is O +ve and I am apparantely healthy . I voluntarily donated blood on friday morning . On saturday morning , I found a big patch of black and blue colour near the punctured area . I consulted the medico who carried out the procedure , she said it will go in 3-4 days . Now its monday morning and still there is no improvement . I am really scared .Is this something very serious . Please help me. Thanks , Suprotim Roy
[|AI|]  Hi, Welcome to ChatDoctorIt is very good that you donated blood, but black and blue colored patch which you developed because of some blood leaked from punctured vein in tissue below skin, noramally a firm pressure applied for sufficient time can prevent any leakage of blood, now it will go away with time you can apply a heparin based gel Thrombophob locally to hasten the recovery it should not be a problem apart from it looks bad cosmetically for few days. Please continue to donate blood voluntarily and next time just take care. Good luck to you.