The causes and clinical manifestations of chancre are different from those of folliculitis.
The chancre is a typical clinical manifestation of stage 1 syphilis and is usually found on the external genitalia, anus, rectum and vagina.
The typical chancre is an ulcer about 1-2 centimetres in diameter, with marked oedema around and at the base of the ulcer, which is firm to the touch. The periphery of the chancre is often accompanied by a visible exudate.
Folliculitis is an inflammatory condition caused mainly by bacterial infections, initially presenting as red papules, which gradually evolve into papular pustules, isolated and scattered, and usually painful to the touch. It often occurs in hairy areas, and its rashes can sometimes merge with each other, and small patches of bald spots may remain after healing.
Since the general public does not have specialized medical knowledge, it is not possible to accurately determine the disease, and it is recommended to consult a doctor for timely diagnosis if there is any discomfort, so as to avoid delaying the disease.