Good Day! I am very worried with what you are describing and I would strongly suggest visiting the surgeon who did the circumcision
since it is not in anyway normal to have bruising and discharge one year after circumcision. Your child might have chronic infection of the penis which needs to be treated properly. Due to the lack of physical examination in this forum I am unable to give a better medical care and advise you to see your doctor.
Hope this answers your query. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries at at: http://www.HealthcareMagic.com/doctors/dr-manuel-c-see-iv/66014
Wishing you good health