research says females are more likely to have acl injuries compared to men because of the body difference . the female knee has a more narrow notch and limits the space for acl movement and can cause pinching leading to a rupture or tear. women also have a wider pelvis which makes a greater angle and puts more force on the ligament in the knee when it twists which can lead to a tear. female hormones also play a part while they keep tendons and ligaments loose they can cause them to be too loose causing the acl to be overloaded. just a few more reasons i am glad i am a guy.