Why is cervicitis considered important?

Cervicitis can be a marker of an underlying cervical sexually transmitted infection, and if that infection is untreated it may ascend to the uterus and fallopian tubes, leading to pelvic inflammatory disease.

Cervicitis and Urethritis

Cervicitis and urethritis are inflammatory conditions of the lower genital and urinary tract: cervicitis is inflammation of the uterine cervix, and urethritis is inflammation of the urethra. In women they are frequently caused by the same sexually transmitted pathogens, and cervicitis in particular can be a marker of cervical infection that may ascend to cause upper-tract disease.

Definition

Cervicitis is inflammation of the uterine cervix, and urethritis is inflammation of the urethra; in women both are commonly caused by sexually transmitted organisms and present with discharge and local inflammatory signs.

Scope

The entry covers the two lower-tract inflammatory syndromes together because they share pathogens and clinical context: the main infectious causes, their typical signs, the concept of cervicitis as a sentinel for cervical sexually transmitted infection, and the link between untreated cervical infection and pelvic inflammatory disease. It is a reference description and does not provide diagnostic or treatment instructions.

Core questions

What pathogens most commonly cause cervicitis and urethritis in women?
Why is cervicitis regarded as a marker of cervical sexually transmitted infection?
How does cervical infection relate to ascending upper-tract disease?
How do infectious causes of cervicitis differ from non-infectious inflammation?

Key concepts

Mucopurulent cervicitis
Chlamydia trachomatis and Neisseria gonorrhoeae
Mycoplasma genitalium
Trichomonas vaginalis
Non-gonococcal urethritis
Cervicitis as a sentinel of cervical infection
Ascending infection to the upper tract

Mechanisms

Cervicitis arises when pathogens infect the columnar epithelium of the endocervix, provoking an inflammatory response that produces a mucopurulent discharge and an easily friable, inflamed cervix; the principal causes are Chlamydia trachomatis and Neisseria gonorrhoeae, with Mycoplasma genitalium and Trichomonas vaginalis also implicated (Workowski, 2021; Lis, 2015; Swygard, 2004). Urethritis reflects analogous inflammation of the urethral mucosa by the same organisms. Because the infected cervix is the gateway to the upper genital tract, untreated cervical infection can permit organisms to ascend and cause endometritis and salpingitis, linking cervicitis to pelvic inflammatory disease (Brunham, 2015).

Clinical relevance

These syndromes are clinically relevant because cervicitis can signal an underlying sexually transmitted cervical infection that, if untreated, may ascend to cause pelvic inflammatory disease and its reproductive sequelae; both conditions may also be asymptomatic, allowing infection to persist and be transmitted (Workowski, 2021; Brunham, 2015). This entry describes the entities and their significance for orientation and is not a basis for individual diagnosis or treatment.

Epidemiology

Cervicitis and urethritis in women are commonly associated with the prevalent bacterial sexually transmitted infections, and a significant share of cervical infections are asymptomatic, so the inflammation may be detected incidentally or through screening rather than through symptoms (Workowski, 2021).

Evidence & guidelines

The CDC Sexually Transmitted Infections Treatment Guidelines define the syndromes and their evaluation (Workowski, 2021); evidence on the contribution of Mycoplasma genitalium to cervicitis and reproductive tract disease has been synthesised in meta-analysis (Lis, 2015), and trichomoniasis as a cause has been reviewed (Swygard, 2004). This entry summarises these sources for orientation rather than reproducing their recommendations.

Debates

What is the role of Mycoplasma genitalium in cervicitis?: Beyond chlamydia and gonorrhoea, Mycoplasma genitalium is increasingly recognised as a cause of cervicitis and is associated with female reproductive tract disease in meta-analysis, but the strength of the association and its management implications continue to be evaluated.

Seminal works

workowski-2021
brunham-2015

Frequently asked questions

What is the difference between cervicitis and urethritis?: Cervicitis is inflammation of the uterine cervix, while urethritis is inflammation of the urethra; in women they are frequently caused by the same sexually transmitted organisms and can occur together.
Why is cervicitis considered important?: Cervicitis can be a marker of an underlying cervical sexually transmitted infection, and if that infection is untreated it may ascend to the uterus and fallopian tubes, leading to pelvic inflammatory disease.