Core Viewpoint - The National Health Commission has organized the development of diagnostic and treatment guidelines for 86 diseases, including achondroplasia, as part of the second batch of rare disease catalog [1] Group 1: Disease Overview - Achondroplasia (ACH) is a hereditary condition that results in disproportionate short stature [1] - Typical clinical manifestations include proximal shortening of long bones, macrocephaly, trident hands, and distinctive facial features such as frontal prominence, midface hypoplasia, and flattened nasal bridge [1] - Clinical diagnosis primarily relies on the presentation of the disease and imaging characteristics [1]