The shape of the cup-shaped ear is similar to a string that is threaded over the edge of the ear chakra to tighten it, which is why some people call it circumcised ear. Most cup ear is congenital and begins to form when the mother is affected by viruses and external factors. Cup ear should be checked for treatment starting at a young age and there is no difficulty in diagnosing it based on the characteristics of cup ear deformity. How to diagnose cup ear: 1. Mild: The local ear whorl is wide and bends at an acute angle forward and downward. There is little tissue loss in the upper part of the earwax, and the surgical result is better. 2. Moderate: The edge of the earring is curved towards the auricular cavity, and the earring wheel and foot of the earring wheel are poorly developed. The earring is cup-shaped. Due to the lack of cartilage support, multiple surgeries are often required to achieve better results. 3.Severe: The earring is bent like a tube. Due to the excessive tissue loss of the ear, it is usually necessary to perform ear reconstruction for correction. For the treatment of congenital cup-shaped ears, monaural deformity is different from binaural deformity, because unilateral patients with normal hearing in one ear are not a big obstacle to language learning, and surgery can be postponed until after the age of 16, when the patient’s head and facial development has been completed, and the patient has a clearer understanding of his disease and more objective requirements for otoplasty.