La gonorrea, del griego γονόρροια, (gonórrhoia: flujo de semen), también denominada blenorragia, blenorrea y gonococia, es una infección de transmisión sexual (ITS) provocada por la bacteria Neisseria gonorrhoeae o gonococo, cuyo huésped específico es el ser humano. Afecta principalmente las mucosas del aparato genital y urinario, pero también puede afectar la conjuntiva ocular, la faringe y el recto. Sus características más habituales son la secreción purulenta por la uretra en el hombre y la consecuencia de infertilidad en la mujer.

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Gonorrhea, also spelled gonorrhoea, is a sexually transmitted infection caused by the bacterium Neisseria gonorrhoeae. Many people have no symptoms. Men may have burning with urination, discharge from the penis, or testicular pain. Women may have burning with urination, vaginal discharge, vaginal bleeding between periods, or pelvic pain. Complications in women include pelvic inflammatory disease and in men include inflammation of the epididymis. If untreated gonorrhea can occasionally spread to affect joints or heart valves. Gonorrhea is spread through sexual contact with an infected person. This includes oral, anal, and vaginal sex. It can also spread from a mother to a child during birth. Diagnosis is by testing the urine, urethra in males, or cervix in females. Testing all women who are sexually active and less than 25 years of age each year as well as those with new sexual partners is recommended. This same recommendation applies in men who have sex with men. Gonorrhea can be prevented with the use of condoms, having sex with only one person who is uninfected, and by not having sex. Treatment is usually with ceftriaxone by injection and azithromycin] by mouth. Resistance has developed to many previously used antibiotics and higher doses of ceftriaxone are occasionally required. Retesting is recommended three months after treatment. Sexual partners from the last 2 months should also be treated. Gonorrhea affects about 0.8% of women and 0.6% of men. An estimated 33 to 106 million new cases occur each year, out of the 498 million new cases of curable STI – which also includes syphilis, chlamydia, and trichomoniasis. Infections in women most commonly occur when they are young adults. In 2013, it caused about 3,200 deaths, up from 2,300 in 1990. Descriptions of the disease date as far back as the Old Testament.

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