If the gap between the thighs is large, it can be corrected by the following methods: first, muscle resistance training: if the strength and shape of the lower limb muscles are general, it will lead to the large gap between the thighs, you can enhance the muscle strength and intensity through muscle resistance training, such as deep squatting, so that the muscle diameter increases, thus improving the situation of the thigh gap increase. Second, surgical treatment: if the thigh gap is increased due to deformity of the knee joint, it is necessary to treat the knee joint, such as internal and external knee joints, you can consider osteotomy orthopedic surgery. Elderly patients with manifestations of osteoarthritis of the knee joint can also consider performing artificial knee joint surface replacement surgery to correct the lower limb force line. Generally after early diagnosis and early treatment, the phenomenon of thigh gap widening can be improved. Patients should pay attention to protect both lower limbs and joints to avoid degeneration and trauma.