The bulge between the anus and urethra may be a bulge in the posterior vaginal wall of women, or it may be a mass caused by pathological factors such as folliculitis, perianal abscess, condyloma acuminatum, hemorrhoids and so on. 1. the posterior vaginal wall bulge: most common in post-partum women, mainly associated with excessive tension in the perineum during labor or assisted delivery and other factors, causing fascia and rectal muscle wall damage, can be manifested as a bulge between the anus and urethral orifice, can be alleviated by lifting the anus and other exercises to alleviate the symptoms. 2. Folliculitis: inflammation of the follicles in the anus and urethra produces irritation, causing increased secretion, and pore blockage leads to long-term secretion can not be discharged to form a lump, which is manifested as a bulge between the anus and urethra. 3. Perianal abscess: local bacterial infection pus, resulting in localized bulging, pain, the symptoms of bulging between the anus and urethra. 4. Condyloma acuminatum: if long-term low-risk HPV infection may cause skin tissue lesions, so that the anus and urethra between the condyloma acuminatum, resulting in a swollen bag or bulge, manifested in localized bulging symptoms. 5. Hemorrhoids: such as mixed hemorrhoids with thrombosis can form a lumpy protrusion, which can be accompanied by pain, bleeding and other symptoms, can be manifested as a bulge between the anus and urethra. If the anus and urethra between the bulge, once found that we recommend timely consultation, clear cause of the cause of compliance with the doctor’s instructions to actively targeted treatment, so as not to delay the condition.