Having sex when you have a vaginal infection or vaginal inflammation may be uncomfortable and might make your symptoms worse. If the source of your infection is a sexually transmitted infection, you may also spread the infection to your partner. If you have chronic yeast infections (candidiasis), confirmed by a doctor, you may have sex without concern for worsening symptoms as long as you're comfortable.

The most common causes of vaginal infection are:

• Yeast infection (candidiasis)
• Bacterial vaginosis
• Trichomoniasis

Yeast infections and bacterial vaginosis aren't sexually transmitted infections, but having new sexual partners increases the risk of bacterial vaginosis.

However, trichomoniasis is a sexually transmitted infection. To prevent possible reinfection, wait to have intercourse until you and your partner complete treatment and you no longer have symptoms.