Is a Bartholin Abscess an STI, and Can It Be Contagious?

A Bartholin cyst or abscess is not a sexually transmitted infection (STI), and the cyst or abscess itself is not contagious ^[1][2]. While an STI can occasionally be present at the same time, the abscess itself is a localized issue ^[3]. Developing an abscess does not mean you or your partner have been unfaithful, and you cannot transmit a Bartholin abscess to anyone else. Additionally, even if an STI is found, a positive test cannot by itself establish when the infection was acquired or if a partner was unfaithful.

(Note: The bracketed codes like ^[1] refer to specific medical research studies that support the facts on this page.)

What Actually Causes a Bartholin Abscess?

A Bartholin abscess typically begins when the duct of the Bartholin gland becomes blocked ^[1]. (The glands lie on either side of the lower vaginal opening, while their ducts open near the entrance.) Fluid builds up to form a cyst, which can then become infected.

Most of the time, this infection is caused by ordinary bacteria that naturally live on your nearby skin, in the vagina, or in the perineal and gastrointestinal tract ^[4][5]. Research shows that Escherichia coli (E. coli) and Streptococcus species are frequently involved ^[6][5]. Often, these infections are polymicrobial, meaning they involve a mix of your body’s normal local bacteria rather than a single transmitted organism ^[4][5]. Because these bacteria are part of your own flora trapped in a blocked duct, the abscess condition is not something you catch or pass on. In fact, a Bartholin abscess can occur in someone who has never had sex.

When Are STIs Involved?

While the abscess itself is not an STI, sexually transmitted infections like gonorrhea, chlamydia, and trichomoniasis can sometimes exist at the same time ^[3].

One small emergency-department study tested a subgroup of patients with a Bartholin cyst or abscess and found gonorrhea in 10% and chlamydia in 13% ^[3]. Because the gonorrhea rate was statistically higher in these patients than in those without a Bartholin issue, the researchers recommended that clinicians consider testing for gonorrhea when evaluating a Bartholin cyst or abscess ^[3]. However, these percentages represent one specific emergency-room group, not your personal risk, and having a concurrent STI does not necessarily mean the STI caused the abscess.

Testing is not an accusation. Whether your doctor recommends testing depends on your symptoms, sexual history, local guidelines, and clinical judgment ^[3]. Testing is often appropriate if you have new or multiple sexual partners, abnormal vaginal discharge, or if you simply want reassurance, since many STIs can be present without symptoms.

What if an STI Test is Positive?

If your doctor tests you and finds an STI, it is important to understand the distinction: the STI is contagious, but the abscess is not.

• Partner Notification: If you test positive for an STI, your recent sexual partners may need notification, confidential testing, and/or presumptive treatment according to the specific STI and local health guidance.
• Abscess Management: Your partner does not need treatment for your Bartholin abscess, because the physical blockage and the localized abscess pocket cannot be transmitted.

When Is It Safe to Resume Sex?

Even if you do not have an STI, you will need to wait before having penetrative sex again to allow for healing and avoid complications. Follow your treating clinician’s instructions, which typically include:

• While a Word catheter is in place: If your doctor places a Word catheter (a small rubber tube used to keep the duct open for drainage), you should generally avoid penetrative vaginal intercourse while it remains in place. Sex can be physically uncomfortable and may dislodge the catheter ^[7].
• Until symptoms resolve: Wait until your pain has faded and there is no more pus-like drainage or active bleeding ^[8].
• STI clearance: If you tested positive for an STI, follow the specific instructions for that infection. You and your partner must avoid sex until you have both completed the recommended treatment (whether a single dose or a multi-day course) and the required abstinence interval for that specific STI has passed.

When to Seek Urgent Care

Contact a clinician urgently if you develop a fever, rapidly worsening pain or swelling, spreading redness, feel systemically unwell, or if you are unable to urinate. Additionally, if you are 40 or older, a new or persistent mass in the Bartholin area warrants clinical evaluation to rule out other conditions ^[9].