👉 Venereal disease refers to a group of diseases caused by sexually transmitted infections (STIs) that affect the reproductive organs and can be spread through sexual contact. These diseases include: 1. Gonorrhea, which is caused by the bacterium gonococcus. 2. Chlamydia, also known as trichomoniasis, which affects the female reproductive system. 3. Syphilis, which affects the male reproductive system. These infections can cause a wide range of symptoms, including