<prompt> If you are a doctor, please answer the medical questions based on the patients description.hello my name is yvonne and the question that i have is that my son just called me telling me that the mole your his arm its the size of 12 dollar that it has lumps and that its leak puss. what do you think that he needs to do, cause im really scared at his point  <response>: Hi.it is best if you consult with a doctor, preferably a general surgeon, for medical and physical examination. Based from your description, it could be a cyst a sebaceous or a gelatinous type. These lesions can occur anywhere in the body and have the tendency to recur. It could also be an abscess formation secondary to an inflammation or a recent infection. Management medical andor surgical will be directed accordingly. Hope this helps. Good day!! Chat Doctor. 