Have Medical Questions? Ask a Doctor Online!
Are you in good health otherwise? If so, these small lumps may be subcutaneous (under the skin) lipomas (fatty balls) or fat collections in the omentum, a protective apron of fat and connective tissue that protects our internal organs. These are completely benign and nothing to worry about. If you desire confirmation of this, see your family doctor and have the area examined. If there is any doubt, a CT can be ordered.
You likely had this to a lesser extent for many years. The stress of weight gain during pregnancy, including the replacement of muscle with fat, and then rapid weight loss with delivery can contribute to this.
I can't say that with certainty without examining you, of course, but what I have outlined above is a common cause of small lumps under the skin of the abdomen in otherwise healthy individuals. Also, you were examined a few months ago by a specialist, correct? If you are having any stomach issues, make a follow up appointment with him, and you can have this finding addressed as well.