Where does syphilis rash often appear?

　　Syphilis is a sexually transmitted disease caused by Treponema pallidum disease , syphilis rash is one of the common symptoms of syphilis. Knowing where the syphilis rash occurs is crucial to early detection and diagnosis of syphilis. The following is a detailed introduction to where syphilis rash may appear.

palms and soles

　　Characteristic expression: Secondary syphilis rash will appear as a characteristic rash on the palms and soles of the feet, usually as copper-red macules with clear borders, which may also be accompanied by collar-like desquamation, that is, palmoplantar desquamative erythema. This rash is one of the more typical manifestations of secondary syphilis, and is different from other skin disease Differential diagnosis is required such as palmoplantar keratosis.

Genitals and surrounding areas

　　Mucosal damage: The genital mucosa is an area easily invaded by syphilis rash. male Painless ulcers may appear in the coronal sulcus of the penis, female The cervical mucosa may also be damaged, manifesting as gray and white erosion of the mucosa. In addition, moist papules, called flat condyloma, may appear in the perianal area. This is a special manifestation of syphilis and is highly contagious.

trunk and limbs

　　Generalized rash: After hematogenous spread of Treponema pallidum, a generalized rash will appear on the trunk and limbs. These rashes have various shapes and have the characteristics of polymorphic rashes. They can appear roseola-like, similar to syphilitic pityriasis rosea, and are symmetrically distributed. The color is mostly dark red papules, varying in size, which can be scattered or merged into sheets.

Mouth and Throat

　　Mucosal plaque: The oral mucosa is also a common site for syphilis rash. Oral mucosal plaques may appear, appearing as gray-white or milky-white patches with a smooth surface and redness around them. Patients generally feel no obvious pain, but it is contagious.

Other parts

　　special performance: In addition to the common locations mentioned above, syphilis rash may also have some special manifestations. For example, some patients may develop moth-eaten hair loss , manifested as hair falling off in sheets, resembling insect erosion. In addition, there may also be Paronychia Such changes etc. At the same time, patients with syphilis are often accompanied by swollen lymph nodes in the groin and other parts of the body.

　　Syphilis rash is a symptom of syphilis infection. Syphilis rash at different stages has different characteristics and distribution locations. By understanding these parts and characteristics, we can increase our vigilance against syphilis and achieve early detection and early treatment.