A small flesh grain growing at the root of the penis may be caused by soft fibroma, warts, folliculitis and other factors. 1. Molluscum contagiosum: also known as skin bulge, protruding from the surface of the skin, presenting a ball, the surface is relatively smooth, soft, no elasticity, no self-awareness of the symptoms, usually do not need special treatment. 2. Condyloma acuminatum: belongs to a sexually transmitted disease, usually caused by human papilloma virus infection, may make the root of the penis appear cauliflower pattern swelling, may also be accompanied by mild itching as well as tingling, with a certain degree of contagious. 3. Folliculitis: not pay attention to the root of the penis care, resulting in hair follicles in the area of infection, may induce folliculitis, infection aggravation will lead to local pustules, similar to a small grain of meat, accompanied by itching, tingling and other symptoms. To summarize, the penis root grows a small grain of flesh, if there are obvious symptoms of discomfort, it is recommended to consult a doctor for examination and treatment.