<s>[INST] I recently noticed a little small lump, inside the scrotum like by my left testicle, doesnt give me any pain nor bothers me. Id also like to mention in 15 male, Im not sure if this is normal or what? But I heard of cancer this cancer that..Im just uncertain. [/INST] Hi, Any lump is not carcinoma it can be plenty of things. Most common is inguinal been at that scrotum which shows positive cough reflex, after reducible, increases in size on straining n coughing.  So lump present must be diagnosed through examination n accordingly investigated including biopsy And accordingly treated.  So in my opinion don't panic n visit a general clinic get checked n treated Thanks n regards </s>