Final answer:
The second most common reported bacterial STD after chlamydia is gonorrhea, which can be treated with antibiotics but may lead to serious complications if untreated.
Step-by-step explanation:
The second most common reported bacterial STD after chlamydia is gonorrhea. Gonorrhea is caused by the bacterium Neisseria gonorrhoeae and can result in a range of symptoms including painful urination and discharge from the vagina . Like chlamydia, gonorrhea is more prevalent in teens and young adults and can be serious if left untreated, potentially leading to pelvic inflammatory disease (PID) in females and inflammation of the reproductive organs in males. Both chlamydia and gonorrhea can be cured with antibiotics, though resistance to these medications has been increasing.