Sexually Transmitted Diseases (STDs) In Women

  • Medical Author:
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

  • Medical Editor: William C. Shiel Jr., MD, FACP, FACR
    William C. Shiel Jr., MD, FACP, FACR

    William C. Shiel Jr., MD, FACP, FACR

    Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

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Quick GuideSTD Diagnosis, Images, Symptoms, Treatment

STD Diagnosis, Images, Symptoms, Treatment

Chancroid

What is chancroid?

Chancroid is an infection caused by the bacterium Hemophilus ducreyi, which is passed from one sexual partner to another. It begins in a sexually exposed area of the genital skin, most commonly the penis and vulva (the female external genital organs including the labia, clitoris, and entrance to the vagina). Chancroid starts out as a tender bump that emerges 3 to10 days (the incubation period) after the sexual exposure. The cells that form the bump then begin to die, and the bump becomes an ulcer (an open sore) that is usually painful. Often, there is an associated tenderness and swelling of the glands (lymph nodes) in the groin that normally drain lymph (tissue fluid) from the genital area; however, the painful ulcer and tender lymph nodes occur together in only about one-third of infections. Chancroid is common in developing countries but is a relatively rare cause of genital ulcers in the U.S.

Diagnosis of chancroid

A clinical diagnosis of chancroid (which is made from the medical history and physical examination) can be made if the patient has one or more painful ulcers in the genital area and tests are negative for syphilis or herpes. (The word chancroid means resembling a chancre, the genital ulcer that is caused by syphilis. Chancroid sometimes is called soft chancre to distinguish it from the chancre of syphilis that feels hard to the touch. The ulcer of chancroid also is painful, unlike the ulcer of syphilis that is painless.) The diagnosis of chancroid can be confirmed by a culture of the material from within the ulcer for the bacterium Hemophilus ducreyi. The clinical diagnosis justifies the treatment of chancroid even if cultures are not available.

Treatment of chancroid

Chancroid is almost always cured with a single oral dose of azithromycin (Zithromax) or a single injection of ceftriaxone (Rocephin). Alternative medications are ciprofloxacin (Cipro) or erythromycin. Whichever treatment is used, the ulcers should improve within seven days. If no improvement is seen after treatment, the patient should be reevaluated for causes of ulcers other than chancroid. HIV-infected individuals are at an increased risk for failing treatment for chancroid and should be observed closely to assure that the treatment has been effective.

What should a person do if exposed to someone with chancroid?

A health care professional should evaluate anyone who has had sexual contact with a person with chancroid. Whether or not exposed individuals have an ulcer, they should be treated. Moreover, if the contact was 10 days or less before the onset of their partner's ulcer, they should be treated.

Medically Reviewed by a Doctor on 3/27/2015

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