Question

question 3 of 10
which std/sti can cause pelvic inflammatory disease (pid)?

a. syphilis
b. scabies
c. chlamydia
d. hiv/aids

Explanation:

Pelvic Inflammatory Disease (PID) is often caused by untreated STIs like Chlamydia and Gonorrhea (Gonorrhea is similar to Syphilis? Wait, no—Chlamydia (option C) and Gonorrhea (not listed here, but Syphilis? Wait, no, Chlamydia trachomatis infections, if untreated, can ascend to cause PID. Wait, actually, Chlamydia (C) and Gonorrhea (not here, but Syphilis? No, Syphilis (A) has different manifestations. Wait, no—correctly, Chlamydia (C) and Gonorrhea are common causes of PID. Wait, the options: A is Syphilis (causes sores, later stages), B is Scabies (skin infestation), D is HIV/AIDS (immunodeficiency). So Chlamydia (C) can cause PID when untreated, as the infection ascends. Also, Gonorrhea (not here, but Syphilis? No, Syphilis is caused by Treponema pallidum, and its primary stage is chancre, secondary rashes, etc. Chlamydia (C) is caused by Chlamydia trachomatis, and if untreated in women, can lead to PID. So the correct options are A? Wait no, wait—Syphilis: no, Syphilis doesn't cause PID. Wait, I made a mistake. Wait, Gonorrhea (Neisseria gonorrhoeae) and Chlamydia (Chlamydia trachomatis) are the main bacterial STIs that cause PID. But in the options, A is Syphilis (Treponema pallidum), B is Scabies (Sarcoptes scabiei, a mite), C is Chlamydia, D is HIV. So Chlamydia (C) is a cause. Also, Gonorrhea (not listed, but Syphilis? No. Wait, maybe the question has a typo, but among the options, Chlamydia (C) and maybe Syphilis? No, Syphilis doesn't cause PID. Wait, no—actually, Chlamydia (C) is a common cause of PID. So the correct answer is C. Also, Syphilis (A) is not a cause of PID. So the correct options are A? No, wait, let's check again. Wait, Syphilis: primary, secondary, tertiary. PID is pelvic inflammation, which is upper genital tract infection. Chlamydia and Gonorrhea are the main causes. So in the options, C (Chlamydia) is correct. Also, maybe A (Syphilis)? No, Syphilis is a spirochete, and its infections don't typically cause PID. So the correct answer is C. Wait, but maybe the question includes Syphilis? No, that's incorrect. Wait, perhaps the question has a mistake, but based on the options, Chlamydia (C) is a cause of PID. So the correct answer is C. Also, maybe A? No, Syphilis is not a cause of PID. So the correct options are C.

Wait, I think I messed up. Let's recall: PID is caused by ascending infections from the cervix, often by Chlamydia trachomatis or Neisseria gonorrhoeae. So among the options, C (Chlamydia) is correct. A (Syphilis) is caused by Treponema pallidum, which causes genital ulcers (chancre) in primary stage, not PID. B (Scabies) is a skin mite, not an STI causing PID. D (HIV/AIDS) is a virus affecting immune system, not causing PID directly. So the correct answer is C.

Answer:

C. Chlamydia