Hi! Good evening. I am Dr Shareef answering your query. Although it needs a clinical assessment to know the nature of the swelling, from your history, it seems to be a collection of blood (hematoma) post fall. This should gradually get absorbed in about two to three weeks time. However, this needs to be reassessed in case it increases in its size, and/or if any signs of inflammation (pain, local rise of temperature, and fever) develops with it. This might need to be evacuated by aspiration or by more invasive procedure in case of infection. I would advise you to see your family physician for an initial assessment followed by a review by a general surgeon if advised. 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. I wish you an early recovery. Dr Shareef.