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A yeast infection is caused by a type of fungus called Candida. Candida normally lives inside the body (in places such as the mouth, throat, gut, and vagina) and on skin without causing any problems. Sometimes Candida can multiply and cause an infection, like if the environment inside the vagina changes in a way that encourages its growth. Yeast infections can be spread to sexual partners in some cases. 

How You Get It:

  • Vaginal sex with someone who has a yeast infection
  • An imbalance in the acidity of the vagina
  • Increase in the naturally occurring Candida organism


  • Some people have no symptoms
  • Genital itching, burning
  • Itchy rash on the penis
  • Cottage cheese-like vaginal discharge
  • Note: Symptoms are similar to those of many other genital infections, so it is important to see your doctor if you have any of the symptoms 

Prevention: A yeast infection can be prevented by wearing cotton underwear, using a condom during sex, and oral or intravaginal probiotics

Testing: A yeast infection is tested by a physician, but can be self-diagnosed if you're aware of the symptoms and know that it is a yeast infection. 


  • Prescription or over-the-counter medication
  • Over time a person's body can develop a resistance to medications that are used frequently
  • Avoid sexual contact until treatment is complete (about 7-10 days)

If left untreated:

  • Will continue to spread it to sex partners
  • Symptoms may persist

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