A 19-year-old girl with painless ulcer in labia majora with rolled out margin :
syphilis Caused by Treponema pallidum classic lesion designated as chancre appears in 9-90 days from first exposure The macular lesions become papular and then ulcerates.The ulcer is painless and firm,with a punched out base,and rolled edges. SHAW'S TEXTBOOK OF GYNAECOLOGY,Pg no:142,15th edition
Treponema pallidum
Chlamydia
Gonorrhoea
Herpes genital ulcer disease
Infections of the genital tract