The difference between pearl rash and condyloma acuminata is as follows: 1, the site is different: pearl rash is good in the male coronal groove and edge; condyloma acuminata is good in the male glans, coronal groove, inner foreskin, foreskin tie, urethra and penis root, female vaginal mouth, clitoris, labia majora both sides and vagina; 2, the form is different: pearl rash is cylindrical spherical, 1-2mm in diameter, arranged into rows, not fused with each other, no symptoms.