What is another kind of sore?

A chancre is a sore that typically develops at the site of infection with a sexually transmitted disease (STD). Chancres are most commonly associated with syphilis, but can also be caused by other STDs such as chancroid and lymphogranuloma venereum. Chancres typically appear as small, round, or oval sores with a raised border and a red or purple color. They can be painful or tender, and may be accompanied by other symptoms such as fever, rash, and swollen lymph nodes. Treatment for chancres typically involves antibiotics to clear the infection and prevent further complications.