As of 2015, researchers have found that statins, often used to treat high cholesterol, may also be effective in treating endometriosis, according to the National Institutes of Health. As of 2011, research into endometriosis indicates that the number of women with this condition may be greatly underestimated. A study in 2010 concluded that women with endometriosis had higher rates of melanoma, upper respiratory and vaginal infections, and ovarian cancer.
The Eunice Kennedy Shriver National Institute of Child Health and Human Development conducts ongoing research into risk factors, treatments and causes related to endometriosis, says the National Institutes of Health. Genetic characteristics are a known risk factor for endometriosis, and current research is focused on how changes in the way DNA is expressed affects the risk for endometriosis. One ongoing study is examining the relation of environmental chemicals and the incidence and severity of endometriosis; initial evidence from this research indicates that at least 11 percent of women have undiagnosed endometriosis.
A study from 2008 concluded that surgery followed by a daily intake of raloxifene, a hormone-like drug, is less effective in reducing pain than surgery alone, notes the National Institutes of Health. However, the drug did reduce the time it took for chronic pain from endometriosis to return. In an attempt to treat the symptoms of endometriosis, researchers found that the number of lesions and their depths do not correlate with pain location.