<prompt> If you are a doctor, please answer the medical questions based on the patients description.About 4 days ago, I noticed a pea shaped lump on my forearm between my wrist and elbow. It is painless and under the skin. What could it be? I have been taking medication for coughing, sneezing, and runny nose since before Thanksgiving. Also, I received a steroid shot.  <response>: Hi.based from your description, it could be a cystic formation tedious or ganglion cyst, lipoma fatty deposit or a fibrous fibrous tissue formation. It is best if you consult with a doctor, preferably a general surgeon, for physical examination and clinical evaluation, especially if the lesion is persistent, increasing in size and is bothering you. Other lesion types must also be ruled-out. Definitive management is excision biopsy of the lesion. Hope this helps. Good day!! Chat Doctor. 