Hello I have noticed a small hard smooth lump has appeared on the right of my chest under the skin no discoloration about 3.5 inches above the nipple but slightly to the left, I am a male. It is slightly smaller than a pea and has been there about 4 months.  Any idea what this is?
Hi. Thanks for your query. Such a swelling in a male person/ patient is not common.a pea sized hard lump on a chest wall in a male patient can most probably be a sebaceous cyst or a lump from a muscle. If this is movable, not fixed to the chest wall it is most probably be a sebaceous cyst; the one which is fixed can be from a muscle. A clinical examination by a Surgeon, FNAC can help diagnosis. All such patients are advised to get this removed as it is small, and the benefit is that you get lump-free and get a sure diagnosis as what it is. So go ahead with excision.