However, in 2012 a team of researchers from Stanford University in the US completed a review of over 11,000 medical records and discovered that women actually tend to feel pain more intensely, particularly when it comes to acute inflammation. Within that zero-to-10 pain rating scale, on average women's pain ratings were almost a point higher than men's.
But that's only one piece of the puzzle, because the analysis was primarily based on self-reported ratings in a hospital setting. The researchers also didn't have access to information that would help them determine the causes of such differences between the sexes. And they haven't been the only ones looking.
Back in 2009, a team of researchers from the University of Florida performed a massive literature review of pain-related research studies, and also found that women show greater sensitivity to most forms of pain. They also found that women experience more pain in general - they go to the doctor with pain-related issues more often than men, they take more painkillers, and suffer from more painful ailments, such as lower back pain and migraines.
In experimental settings, it was the men who demonstrated a higher pain threshold, according to the review. An experimental setting here means that someone was deliberately hurting people and asking them how they felt about it. Overall, men were found to be more tolerant of pain than women, at least in the lab. One of the proposed explanations for this is biological - men's bodies usually release more pain-relieving biochemicals, such as beta-endorphins.