If you had a cold, you'd know about it, right? If you had an ear infection, you'd know about that as well, correct? But, what about Chlamydia -- if you had it, would you know?

According to an article featured on WebMD, you may not know. Some sexually transmitted diseases, such as gonorrhea, have symptoms that are often confused with signs of a bladder infection, while Chlamydia, as mentioned, may not show any symptoms at all.

Here is a list of the six most common sexually transmitted diseases in women, all of which are linked to more detailed descriptions of symptoms and treatments from the WebMD site.

1. Chlamydia

2. Gonorrhea

3. Genital Herpes

4. HPV and Genital Warts

5. Trichomoniasis

6. HIV/AIDS