Soft chancre, also known as chancroid, is a highly infectious sexually transmitted disease that affects the genital area. This condition is caused by a bacterium known as Haemophilus ducreyi and typically manifests as painful ulcers or sores around the genitals. In medical terminology, soft chancre is often referred to as "ulcus molle". Other synonyms for this condition include "genital chancroid" or simply "chancroid". While soft chancre is not as common as other sexually transmitted infections, such as gonorrhea or chlamydia, it can still cause significant discomfort and complications if left untreated. Therefore, it is recommended to seek medical attention if any symptoms of soft chancre are noticed.