A long flesh on the inner side of the foreskin may be the cause of condyloma acuminatum, flat warts, pearly papules and so on. 1. Warts: a sexually transmitted disease caused by human papillomavirus infection, most of the infections through sexual intercourse, will lead to the genitals appear cauliflower-like, papillomatous organisms, so it is possible to lead to the inner side of the foreskin to grow a meat. 2. flat warts: a chronic infectious disease caused by syphilis spirochete infection, is a manifestation of the second stage of syphilis, may lead to flesh-red or pink flat pimples, can also cause the inner side of the foreskin to grow a meat. 3. pearly papules: the etiology is unknown, and may be too long foreskin, local friction stimulation and other factors, can also cause the inner foreskin to grow a meat, the typical symptoms will appear on the edge of the glans with a small grain of rice or caviar, transparent, translucent pimples, usually no pain and itching symptoms. There may be other reasons for the growth of a flesh on the inner side of the foreskin, and it is necessary to go to the hospital in time for examination and treatment as prescribed by the doctor.