REACTIVE ARTHRITIS:GENITAL OR LUNG INFECTION?

Report #7212

Reactive arthritis occurs when a person develops pains in many muscles and tendons and in one or more joints, often after intimate contact followed by burning on urination (1),/ or intestinal upset such as typhoid fever (2),/ or a chronic cough associated with a chlamydia or mycoplasma infection.

An infected person may suffer pain and burning in the eyes and small ulcers in the throat and mouth. Some have a genetic predisposition for arthritis with a positive blood test for HLA-B27. Parts of dead, but not live, bacteria have been found in the fluid removed from painful joints (3,4,5,6,7,8,9,10,11) even after many months of antibiotic treatment (12). Even the sophisticated PCR test can fail to reveal chlamydia, when the more sensitive ligase chain reaction finds the germ (13). For some, joint and muscle pains disappear after 6 month, but for most, the pains continue for many years. The most useful test to diagnose the cause is a special urinary swab for chlamydia, ureaplasma and mycoplasma (14). Almost 60% of young people who develop reactive arthritis have positive cultures for these infections, whereas only 22% have positive blood antibody tests. A lesser number are infected with helicobacter, the bacteria that causes stomach ulcers; salmonella, the bacteria that causes diarrhea; hepatitis B and C, or Borrelia, the spirochete that causes Lyme disease. I find that short-term antibiotic treatment does not relieve the joint pains, but several months treatment with azythromycin, clarithromycin, doxycycline or minocycline often does. Symptoms can return after the medication is stopped. See reports #J106 and #J159.

By Gabe Mirkin, M.D., for CBS Radio News

Reported 8/30/97; Checked 9/5/05