Pink tumors on the foreskin may be caused by more secretions, not paying attention to personal hygiene, long foreskin and other reasons. 1. Increased secretion: the increased secretion of the foreskin of the penis is easy to block the hair follicles, and the hair follicles are easy to form chalk tumors after being squeezed. 2. Don’t pay attention to personal hygiene: If you don’t pay attention to personal hygiene, it is easy to breed bacteria, leading to inflammation, which will also lead to the appearance of chancroid on the foreskin. 3. Excessive circumcision: the people with excessive circumcision, the glans can not be exposed, it is easy to appear circumcision, the circumcision scale stimulation of the foreskin, it is easy to cause inflammation, leading to the growth of chalk tumor. There are many reasons for the growth of chalk tumor on the foreskin, in addition to the above reasons, it may also be caused by other male diseases, it is recommended to timely hospital consultation and treatment.