The population of patients receiving posterior total hip arthroplasty (THA) is growing among middle-aged adults. Through literature review and a survey of colleagues, it has been presented that patients and medical staff tend not to discuss the effects of sexual activity on posterior THA. So the question arises, is the supine position (missionary position) recommended over other coital positions in preventing posterior hip dislocations after a THA? The literature review included a search for full-text research studies from the peer-reviewed journals from 2002 to 2007. The studies affirm that the supine position is the safest coital position after a THA. Sexual relations are essential to the health, quality of life, and well-being of individuals. Because of the importance that sexual relations play in one's life, it is imperative that healthcare providers (nurse practitioners) educate their patients regarding sexual activity after a posterior THA.