Conversation: The conversation between human and AI assistant.
[|Human|] Cyst like lump has formed in the middle of my right arm, on the underside and to the back. I am three weeks post op full open rotator cuff surgery (full thickness tear 1x1 and acromioplasty. Any idea what the cause may be? It isn t painful, but does feel slightly numb.
[|AI|]  Hi! Good morning. I am Chat Doctor answering your query. With the history of surgery three weeks back, most likely it has to be a hematoma (collection of blood) or Serbia(collection of serum) which would usually subside with absorption gradually. However, if the size increases with other discomfort, you might have to get your self reviewed by your surgeon for further opinion and management of the problem. 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. Wishing you an early recovery. Chat Doctor.