STDs refer to the Sexually Transmitted Diseases or often regarded as veneral diseases. These are the diseases transferred from affected individual to healthy individual by unprotected sexual contact. For example - AIDS (Acquired Immuno Deficiency Syndrome), genital herpes, gonorrhea etc .
Preventive measures against STDs:
1) Avoid sex with multiple and unknown partner ,
2) Prefer safe sex (use of condom during coitus) ,
3) Timely check-up is signs and symptoms of disease are discovered ,
4) Avoid sharing blades and needles ,
5) Check blood before blood transfusion , etc.