By Katilin Madden

Is that a co-worker knocking on your office door, or is it love? Turns out, there's a good chance it could be both.

Dating a colleague may be considered a faux pas at many companies, but that's not stopping workers from doing it anyway. According to a new CareerBuilder survey, inter-office dating is not only common; it has a fairly high success rate too. Thirty-eight percent of people surveyed said they'd dated a co-worker at least once during their career and of those, 31 percent eventually went on to marry said co-worker.

Still, inter-office dating should be approached cautiously. "Whether you're dating someone higher-up or a colleague at the same level, office romances are always tricky," says Rosemary Haefner, vice president of human resources at CareerBuilder. "First and foremost, it is important to know your company's office dating policy. Remember to stay professional and draw a boundary line between your personal life and the workplace."

Want to know how many people date the boss, what industries are most conducive to office romance and where most relationships between co-workers begin? Check out the infographic, below.