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2. SEXUALLY TRANSMITTED DISEASE: CHLAMYDIA

Chlamydia, another bacterial infection, is spread through unprotected vaginal, oral, or anal sex. As with gonorrhea, condoms are nearly 100 percent effective at preventing the spread. And if you’re giving oral sex to a woman, dental dams can reduce your risk.

Signs of chlamydia

Chlamydia rarely has noticeable symptoms in either women or men, says Herbenick. In the off-chance you do show signs of infection, the symptoms could include a penile discharge or burning when you pee, says Dr. Ghanem. These problems usually creep up about a week after an exposure. Severe infections in men that are not treated quickly can cause scarring in your urethra, making it more difficult to pee—and it may even require surgery.

How to detect chlamydia

The CDC recommends annual screening for gay or bisexual men. However, straight men should ask their doctors about testing as well.

How to treat chlamydia

Chlamydia can be cured with antibiotics.