Ligament laxity syndrome, also known as joint hypermobility syndrome and benign joint mobility syndrome, is a condition in which joint mobility exceeds the normal range of motion due to ligament laxity in multiple joints throughout the body. Normal joint movement requires tension in the ligaments, so lax ligaments will inevitably cause joint movement to be compromised. Due to the lack of strength in the ligaments and other soft tissues, the joints are prone to move beyond the normal range, further causing damage to the body. This usually manifests itself in the patient’s generalized joint laxity, which makes him/her prone to ankle sprains, back pain, pillow falling, joint pain, and flat feet. Patients with ligamentous laxity syndrome can strengthen the muscles around the joints with appropriate exercises to relieve the pain and abnormal joint movement caused by ligamentous laxity. When ligamentous laxity syndrome is present, it is recommended that it be treated in a timely manner to avoid more serious consequences.