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Description:This scanning electron microscopic (SEM) image depicted four views of Gram-negative Neisseria gonorrhoeae bacteria. Under this highly-magnified view, details of the protective, adhesive matrix, which this colony had secreted is revealed. This molecular matrix consists of polymeric constituents known as the “extracellular polymeric substance”, or EPS. See PHIL 10250 for an enlarged view of the colorized inset, which distinguishes the diplococcal pairs.
What are the signs and symptoms of gonorrhea?

Some men may have no symptoms, however, some have symptoms that appear within 2-5 days, and can take as long as 30 days to appear. These include a burning sensation when urinating, or a white, yellow, or green discharge from the penis, and sometimes swelling of the testicles.

In women, the symptoms are often mild, but most have no symptoms. Signs can be so non-specific as to be mistaken for a bladder or vaginal infection. Initial symptoms include a painful or burning sensation when urinating, increased vaginal discharge, or bleeding between periods. Women are at risk of developing serious complications from the infection, regardless of the presence or severity of symptoms.

Rectal infection in both men and women may include discharge, anal itching, soreness, bleeding, or painful bowel movements. Rectal infection also may cause no symptoms. Infections in the throat may cause a sore throat but usually causes no symptoms.

High Resolution: Click here for hi-resolution image (0.98 MB)
Content Providers(s):CDC/ Dr. Stephen Kraus
Creation Date:1973
Photo Credit:
Links:CDC - Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention: Gonorrhea
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.