The leg clenching syndrome is the use of leg clenching or leaning on an object and rubbing on it to squeeze the vulva, thus producing sexual pleasure. Because the leg-holding syndrome may be caused by mental anxiety and tension in daily life, its treatment should be psychological guidance, but also oral anti-anxiety drugs, so as to relieve the mental state of anxiety. And parents should create a good living environment for the child, give the child enough warmth, which is also conducive to alleviate the pinched leg syndrome.