Uneven soft tissue size or shape is a concern following gynecomastia. If it occurs quickly in the early period, you should be concerned about a hematoma that is caused by a bleeding vessel. This is an emergency and requires you to contact your surgeon so the pool of blood can be evacuated. If the pooling of blood is not removed promptly it can cause compromise of your skin. If the unevenness develops gradually over weeks, then it is indicative of uneven contouring by your surgeon. This is definitely not an emergency and can be corrected when all of the swelling has resolved. Any gynecomastia revision surgery should be performed no earlier than 3 months following surgery.