Hernia (7)
(Other definitions for bulge that I've seen before include "Protrusion" , "surge?" , "Hump" , "Battle of the -----: last major German counter-offensive of WWII (1944)" , "Swell" .)
(Other definitions for rupture that I've seen before include "'Tear, burst open (7)'" , "State of being torn or burst open" , "Split" , "Bursting" , "Ecstasy" .)