If there is a bulge in something, there is a sudden large increase in it. ...a bulge in aircraft sales. ...the huge bulge of payments due over the next two years. Synonyms: increase, rise, boost, surge More Synonyms of bulge.
Two types of herpes simplex virus infections can cause genital herpes: 1  HSV-1. 2  This is the type that usually causes cold sores or fever blisters around your mouth, though it can be spread to your genital area during oral sex. 3  Recurrences are much less frequent than they are with HSV-2 infection.
There are two forms of the herpes simplex virus: Herpes simplex virus 1 (HSV-1). The usual cause of oral herpes (herpes labialis), which are commonly called cold sores or fever blisters. HSV-1 can also cause genital herpes, which is a sexually transmitted disease (STD). Herpes simplex virus 2 (HSV-2). The usual cause of genital herpes, but it can also cause oral herpes.