Idiopathic lid entropion in children is most often seen in infants and young children and is mostly caused by medial canthus, overdevelopment of the orbicularis muscle at the lid margin, or underdevelopment of the lid plate. Congenital entropion can disappear on its own with age and nasal development, so there is no need to rush to surgery. If the child is 5-6 years old and the eyelashes still turn inward and irritate the cornea, surgery can be considered. The current surgical method for entropion is relatively single, mostly using sutures, but the simple suture method often causes recurrence, and we use four different surgical procedures to target the treatment according to the different clinical manifestations and pathogenesis of the child, with greatly improved results. In mild cases of entropion and impingement, where the position of the eyelashes does not change with upward and downward movements of the eyeball, a simple 3-pair suture method is used; in mild cases of entropion and impingement, where the impingement is aggravated with downward movements of the eyeball, the lower rectus sheath is disconnected. In cases of moderate or moderate lid entropion with increased subocular motion, the lower rectus sheath is disconnected with a combination of sutures. In moderate or moderate entropion with no change in eyelash position with upward or downward movement, an incision with partial excision of the lower eyelid skin and lower orbicularis is used. Pre-operative and post-operative comparison of the incisional approach Pre-operative and post-operative suturing combined with inferior rectus sheath fiber dissection Pre-operative and post-operative