They can be arranged in a row along the coronal sulcus, or even around the entire coronal sulcus, and can develop to the whole penile area. However, the growth rate is slow, early hemispherical, with the development of the disease can become cone-shaped; 2, penile tethered gland hyperplasia: located on both sides of the tether, can be seen white or light red papules, the number is small, the cause of this disease is unknown, may be due to physiological abnormalities or local stimulation, usually without special treatment; 3, penile folliculitis: mostly due to bacterial infection, the lesions are red papules, with the development of the disease can appear central Scrotal dermatitis, genital herpes and other diseases may appear as long bumps on the penis, such as the typical performance of penile sclerosis is pain after erection. Therefore, it is advisable to seek medical attention in time to get a clear diagnosis and then treat the symptoms.