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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 ]
Chancre is a lesion typical of infection with the bacterium that causes syphilis, Treponema pallidum; Chancroid is a lesion typical of infection with the bacterium Haemophilus ducreyi; Chancres are typically painless, whereas chancroid are typically painful
Genital herpes ulcers. A genital ulcer is an open sore located on the genital area, which includes the vulva, penis, perianal region, or anus. Genital ulcers are most commonly caused by infectious agents (fungal infections, secondary bacterial infections, or sexually transmitted infections such as genital herpes, syphilis or chancroid).
Ringworm. What it looks like: Ringworm is a common skin infection caused by a fungus. It gets its name from its circular rash, which is often red, swollen, and cracked. Other symptoms to note ...
Ringworm is a fungal infection that causes a red, itchy, circular rash on the skin with raised edges and a clear center, says Dr. Kamangar. The rash may be scaly, bumpy, or blistered, and can ...
Congenital syphilis is syphilis that occurs when a mother with untreated syphilis passes the infection to her baby during pregnancy or at birth. [4] It may present in the fetus, infant, or later. [1] [5] Clinical features vary and differ between early onset, that is presentation before 2-years of age, and late onset, presentation after age 2 ...
Certain bacterial infections can be serious and in some cases, life-threatening, say experts.
Haemophilus ducreyi is a Gram-negative coccobacillus, and has a shape between a spherical coccus [6] and a rod-shaped bacterium. [1] This species of bacterium has pili, fine and tangled appendages composed predominantly of protein, that allow bacteria to attach to surfaces, including those of cells.