What is the most common std in the world?

Answer 1

Five of the most common STDs in the US are chlamydia, gonorrhea, herpes, genital warts/HPV, and trichomoniasis. But in some circles, HIV and syphilis are more common.
gonorrhea herpes and syphilis
Five STDs are:

Gonorrhea

Hepatitis B and C
Herpes
HIV Disease

Syphilis

For a more comprehensive list of STDs, visit the Related Question.

Answer 2

Five types of Sexually Transmitted Diseases:

1. Chlamydia
2. HIV
3. HPV
4. Hepatitis B
5. Gonorrhea

Risks of all these can be reduced by using condoms, dental dams, and regular screening.

Answer 3

Cyphillis