<s>[INST] We just noticed a hard lump about the size of a pea in the skin below one of my boyfriends testicles.  It doesn't float around and seems to be attatched to the skin but isn't painful.  Any ideas on what this could be?  He is 36 years old, 6' tall, and about 220lbs. [/INST] Hi, Your boyfriend having hard nodule over attached skin over testes. You should consult a nearby urologist for a detailed examination of a nodule and check whether it originates from skin or from the scrotum. It can be fibroma like lesion. It's advisable to investigate with FNAC to do further workup and to rule out the nature of the lesion. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Parth Goswami, General & Family Physician </s>