Conversation: The conversation between human and AI assistant.
[|Human|] I had a small hard lump on my left arm the other night, which I rubbed down thinking it was a knot in my muscle from working out too much. Now it s gone, but there is a red and brown patch in it s place, which looks like a bruise, but does not hurt like a bruise except in one spot. Should I be worried?
[|AI|]  Hi! Good evening. I am Chat Doctor answering your query. Although it needs to be examined clinically in person, from the history, I would presume both of these occurring together to be due to over working of the muscle resulting in some minor muscular tears resulting in the bruises. If I were your doctor, after a clinical assessment, I would advise you for an anti-inflammatory along with a proton pump inhibitor Chat Doctor.  If you did not get relief, I would then refer you to a general surgeon/internist/dermatologist to clinically assess these lesions along with related investigation if any, for a proper diagnosis and management. 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 Chat Doctor to clear doubts on your health problems. I wish you an early recovery. Chat Doctor.