What is the evolutionary theory of premature ejaculation (PE)?

Updated: Jan 15, 2019
  • Author: Samuel G Deem, DO; Chief Editor: Edward David Kim, MD, FACS  more...
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It has been theorized that evolutionary factors are involved. From an evolutionary perspective, it seems logical that males who can ejaculate rapidly might be more likely to fertilize a female than those who require prolonged stimulation to reach climax. The genes of a male who ejaculates rapidly (but not before intromission) would be more likely to be passed on. In some settings, a male who could not complete the fertilization process quickly might be pushed away or killed by a competing male because of his obvious vulnerability during intercourse.

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