arm pit lump removal

Within the last year I found 2 lumps in my breast around 1 cm big.  I was directed to the oncologist who did an ultrasound.  He said that by the looks of the ultrasound and with me being only 21 it looked like cysts.  I haven't been back since.  

Well last week a lump developed in the upper portion of my left arm pit.  It continually grew getting to be almost the size of a walnut.  Everyday it got bigger and it was painful at times and tender to the touch.  There wasn't anything coming out of it and it felt rock hard at the top and spongy on the sides of the lump.  I went to my physician to get it looked at.  I said that I thought it was an ingrown hair or a cyst.  She looked at it for about two seconds, didn't ask any questions, and said it could be either and she wanted to remove it right then.  She removed the lump by making an incision and then packing it with gauze.   I was just wondering why there was such urgency if there was nothing to worry about and if I should be concerened?  Also now that I have had this done I am in a lot of pain.  My arm has even been going numb on and of with shooting pains running through it.  There isn't any redness around the area so I don't think it is infected.

[CCF-RN,MSN-JS]

Dear harveyw, It sounds like she drained a cyst.  You would want to follow up with her to make sure all is healing correctly, there may be swelling causing the numbness but you should have this checked out.  Ask if a specimen was sent for analysis, if so what the results were.  I do not know about the urgency for the procedure perhaps it was just convenience that it could be done immediately.