All of them are very serious and some even life threatening.
HIV/AIDS is the hardest to treat because the virus mutates at a very high rate, and it has killed more people than any other STD.
Chlamydia, a bacterial infection, is more infectious than any other STD.
HIV
HPV
Gonorrhea most likely.
melanoma
Its a type of STD
Yes - PID is a serious condition caused by an untreated STD.
The most serious STD today is often considered to be human immunodeficiency virus (HIV), which can lead to acquired immunodeficiency syndrome (AIDS) if untreated. HIV continues to have a significant impact on public health globally, particularly in regions with limited access to healthcare. Other serious STDs include syphilis and gonorrhea, which have shown rising resistance to treatment. The ongoing stigma and lack of awareness surrounding these infections complicate prevention and treatment efforts.
Type A is the most common form of NPD and the most serious, with death usually occurring by the age of 18 months.
Trichomoniasis is the most common protozoan STD in the US. Aside from giardia, which is rarely sexually transmitted, it's the only protozoan STD.
Chlamydia is the most common bacterial STD in the US, and the most common reportable STD. You should know that not all STDs are reportable, so the CDC doesn't get direct reports about HPV or trichomonas.
its a type of STD
Syphylis