Chlamydia is perhaps the most common of all sexually transmitted diseases, though it is comparatively unsung. While it can produce symptoms such as discharges, burning sensations, abnormal bleeding, pain, and nausea, these symptoms are easily confused with those caused by gonorrhea. In addition, in nearly three quarters of women and nearly half of men chlamydia produces no symptoms at all. Giantmicrobes are based on actual microbes, cells, organisms and other critters, only 1,000,000 times actual size!