Men’s anus perineum holding feeling is considered to be caused by acute prostatitis, bladder stones, prostate hyperplasia and other diseases. 1. Acute prostatitis: mostly due to pathogenic bacterial pathogen infection, the patient usually can appear high fever, nausea, urinary frequency, urinary pain, urinary hesitation and other phenomena, but also can be accompanied by perineum, external genitalia and anus and other parts of the pain, suffocation and other discomforts. 2. Bladder stones: primary bladder stones are mostly caused by malnutrition, while secondary bladder stones are mainly secondary to bladder foreign bodies, ureteral stones, urinary tract infections and so on. The main clinical manifestations of lower abdominal pain, urinary difficulties, and the pain worsens during urination and radiates to the perineum, the head of the penis and other parts of the body, and some patients may be conscious of the anus and perineum to hold and distend the discomfort. 3. Prostatic hyperplasia: mostly related to ageing, sex hormones and other factors, the main clinical manifestations of frequent urination, urinary difficulties, urinary retention and other symptoms, severe urinary retention, some patients may feel discomfort in the anus perineum. There are many other causes of male anogenital distension, it is recommended that patients go to the hospital in a timely manner to identify the cause of the disease, and receive treatment as soon as possible.