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A chancre (/ ˈ ʃ æ ŋ k ər / SHANG-kər) [1] is a painless genital ulcer most commonly formed during the primary stage of syphilis. [2] This infectious lesion forms around 21 days after the initial exposure to Treponema pallidum, the gram-negative spirochaete bacterium causing syphilis, but can range from 10 to 90 days. [2]
The initial ulcer may be mistaken as a "hard" chancre, the typical sore of primary syphilis, as opposed to the "soft chancre" of chancroid. [citation needed] Approximately one-third of the infected individuals will develop enlargements of the inguinal lymph nodes, the nodes located in the fold between the leg and the lower abdomen. [citation ...
There may also be sores in the mouth or vagina. [2] Latent syphilis has no symptoms and can last years. [2] In tertiary syphilis, there are gummas (soft, non-cancerous growths), neurological problems, or heart symptoms. [3] Syphilis has been known as "the great imitator", because it may cause symptoms similar to many other diseases. [2] [3]
Additionally, syphilis can cause painless red sores on the penis, called chancres. Finally, human papillomavirus (HPV), can cause genital warts and Bowenoid papulosis.”
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Gonorrhoea or gonorrhea, colloquially known as the clap, [7] is a sexually transmitted infection (STI) caused by the bacterium Neisseria gonorrhoeae. [8] Infection may involve the genitals, mouth, or rectum. [9] Gonorrhea is spread through sexual contact with an infected person, [1] or from a mother to a child during birth. [1]
The Centers for Disease Control and Prevention tracks STIs, including chlamydia, gonorrhea and syphilis. Although infections like chlamydia, for example, are highest among adolescents and young ...
About 500 million have either syphilis, gonorrhea, chlamydia or trichomoniasis. [1] At least an additional 530 million have genital herpes, and 290 million women have human papillomavirus. [1] Historical documentation of STIs in antiquity dates back to at least the Ebers Papyrus (c. 1550 BCE) and the Hebrew Bible/Old Testament (8th/7th C. BCE ...