The females will lay eggs in the summer following their mating. The eggs are sticky when laid and will allow the egg mass to adhere wherever applied. The egg mass can contain between 16-160 eggs. The females will protect this egg mass until they hatch, usually in late summer or early fall. The larvae may stay around the mother after hatching but do not directly depend on her. Larvae for this species remain in this larval stage for multiple years, some up to four years.Bruce, Richard C. “A Model of the Larval Period of the Spring Salamander, Gyrinophilus  Porphyriticus, Based on Size-Frequency Distributions.” Herpetologica, vol. 36, no. 1, 1980, pp. 78–86. JSTOR, http://www.jstor.org/stable/3891859. It takes the post-metamorphosis individual another four years before reaching sexual maturity.
