How and why does endometriosis cause infertility?

Hi,thanks for your questions and i will be happily to help you. Researchers are still trying to understand the relationship between endometriosis and infertility, but approximately 30 to 40 percent of women with the disease are infertile. This makes endometriosis one of the top three causes of female infertility. That's because Inflammation from endometriosis may damage the sperm or egg or interfere with their movement through the fallopian tubes and uterus. In severe cases of endometriosis, the fallopian tubes may be blocked by adhesions or scar tissue. Fuyan pill can help cure endometriosis and unblock fallopian tubes, but because our pills is not a Preｓｃｒｉｐｔion drugs,it is a Outpatient medicine with patent formula,the formula will be different even if patients with same disease. to live up a better treatment effect, the formula will be Prescribe to patients depends on their symptoms and disease conditions, so would you please tell me more informations about your disease so that i can check for you and give my best diagnose supporting ? You can send your information to herbalistlee@yahoo.com . Please don't worry,i will help you. Regards