Complex sentence: Cysts are not sexually transmitted, they often simply develop for no known reason with out any type of infection (s) being present all though sexually transmitted diseases such as Gonorrhea, Syphilis and other bacterial infections can cause them.
Split into simpler sentences: Cysts are not sexually transmitted, they often simply develop for no known reason with out any type of infection (s) being present. However, sexually transmitted diseases such as Gonorrhea, Syphilis and other bacterial infections can cause them.