Hi and thank you so much for this query. I am so sorry to hear about this bruise. A bruise lasting ten days need to be checked. This may be a more concerning condition like thrombosis. I will suggest that you get examined to rule out any potentially dangerous condition and manage the symptoms appropriately. Try cold packs and maybe some pain medications. Your primary care doctor would be able to assist you through this. I hope this addresses your query fully. Thank you so much for patronizing our services and please do feel free to ask for follow up clarifications and information if need be. I wish you the best of health. Dr. Ditah, MD.