<s>[INST] i have large mushy bump uder my right arm pit  im male 16 years old and its gross??? its been there for a while it started out a a normal zit  over time the redness stayed but the tenderness when away. now it back and it hurts. i also noticed i had a lorge hard bump by my groin??? any idea what it is or what i should do? [/INST] Hello! Thank you for the query. If you have been shaving your armpit, an infection of hair follicle and abscess formation is the most probable reason. Some cyst presence (sebaceous cyst) is also possible. It seems that the incision will help with this lump, so please consult a surgeon with this issue. In case pf any doubts, ultrasound can be done. Lump in the groin can be a hernia, lipoma or a cyst. This should be checked by a surgeon as well. Hope this will help. Regards. </s>