How does the body typically respond to an untreated STD over time?

The body typically responds to an untreated STD over time by potentially progressing to more serious health complications. When sexually transmitted infections are left untreated, they may lead to a variety of long-term health issues. For instance, certain STDs like chlamydia and gonorrhea can result in pelvic inflammatory disease, infertility, or chronic pain. Moreover, untreated syphilis can lead to severe systemic complications affecting the heart, brain, and other organs.

While the immune system does attempt to manage infections, this often does not equate to immunity against STDs, and immediate recovery is unlikely without intervention. Additionally, a lack of response is not typical since the body will exhibit some form of symptoms or complications when faced with persistent infections. Therefore, the correct answer highlights the serious long-term consequences of not treating STDs promptly.