STDs are sexually transmissible diseases, commonly called venereal diseases or STDs, and are infectious diseases transmitted between people only during sexual intercourse. Contrary to common belief, there is no risk of contracting an STD from toilets.
There are many forms of STDs spread by :
They have different symptoms. They often cause skin disorders, irritation, itching or pain involving the genitals or anus (such as rectal lymphogranuloma venereum or LGV). However, the disease may be systemic (hepatitis B, AIDS, syphilis).
Now they are usually referred to as sexually transmissible infections, or STIs.
Condoms protect against STD. DR Credits