Diagnosis
Inflammation of the rectum. There are a variety of non-infectious causes as well.
Epidemiologic Risks
Anal intercourse.
Microbiology
Chlamydia trachomatis/LGV, Herpes simplex virus, Neisseria gonorrhoeae, Syphilis, Mycoplasma genitalium (PubMed), CMV.
Empiric Therapy
Get a diagnosis, no need for empiricism.
Pearls
Herpes can present with acute urinary retention.
I always thought it was a metaphor, but blowing smoke up your ass (PubMed) can cause proctitis and abscess (PubMed).
Last Update: 01/06/19.