Hi ! Good afternoon. I am Dr Shareef answering your query. With the history of trauma and a bruised abdomen, the present clinical condition of your grandson demands an immediate clinical examination by a general surgeon or by a doctor in the ER to rule out any intra-abdominal visceral injury. Therefore, I would suggest you to take him to the nearest hospital soon for a review. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef