Ever since he became sexually active in his teens, Serge has been able to get an erection when he masturbates but never when he is with a partner. We can describe Serge's sexual dysfunctions as

Question

Quizplus · Accepted Answer

Serge's dysfunction is lifelong because it has been present since he became sexually active, and situational because it occurs only with a partner, not during masturbation.

Ever Since He Became Sexually Active in His Teens, Serge