The chancre is a typical clinical manifestation of the first stage of acquired syphilis, which occurs most often on the external genitalia and, in men, on the coronal groove of the penis, the foreskin and the glans. The chancre is a localized manifestation, and there are usually no systemic symptoms.
The typical manifestation of noma is a red spot on the surface of the external genitalia at an early stage, after which it rapidly becomes an inflammatory papule. After several days of progression, the papule gradually increases in size and forms a hard nodule, which continues to develop, and the surface of the nodule necrose to form a round ulcer of about 1-2 cm in size, with a clear border, elevated periphery and peripheral oedema, and secretion is often visible on the surface of the ulcer, which is generally painless, and the nodule is cartilaginous to palpation. The ulcers are usually painless, and the hard nodes are cartilaginous to the touch. If untreated, the hard noma may resolve on its own in about 3 to 8 weeks. If treated it may subside around 7-14 days after treatment, often leaving dark red scarring and hyperpigmentation.
If you have similar symptoms to those mentioned above, and also have a history of syphilis infection, such as unclean sexual contact or blood transfusion, you must consult a regular hospital in time for examination. The syphilis serology test is the main test for syphilis, and the diagnosis is confirmed and treated early and regularly to avoid complications and infections in others.