Hello I had gone through your question very diligently and I will try to help you in best possible way Erectile dysfunction warrants detailed evaluation to rule out underlying organic cause which can be any of following Heart disease Metabolic disorder like diabetes, Liver disease or thyroid disorder Neurological disease psychological or stress induced Drug abuse I would like further information to help you better Your age and relevant medical history Do you smoke or consume liquor Any history of STD or urogenital infection? Since how long you have this problem sildenafil is good drug for erectile dysfunction so you need not to worry until diagnosis confirmed Please revert back with my answers, I will definitely help you in best possible way Best wishes