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.
Primary HSV-1 infection often results in painful skin or mucosal lesions, but can also be asymptomatic. Virus replicates at the portal of entry, usually oral or genital mucosal tissue, leading to infection of sensory nerve endings. Virus is then transported to regional ganglia where it establishes latency.