Perianal hematoma

[2] The symptoms of a perianal hematoma can present over a short period of time.

Pain, varying from mild to severe,[3] will occur as the skin surrounding the rupture expands due to pressure.

[citation needed] Perianal hematoma are caused by the rupture of a small vein that drains blood from the anus.

[citation needed] It is diagnosed with a visual and physical examination by a general practitioner or proctologist.

Care needs to be taken in regard to bleeding from the wound and possible infection with fecal bacteria.

A perianal hematoma, identified by the typical blue tinge under the skin (to the left in the above image)