In China, there exist many problems regarding the propagation and implementation of the diagnosis and treatment of progressive hemifacial atrophy(PHA, ICD-10 code: G51.8). The knowledge propagation of PHA, which is also known as Parry-Romberg syndrome and hemifacial atrophy, is limited. Meanwhile, no standardized algorithm has been established for multi-disciplinary cooperation. Nowadays, there is a lack of guidance on the diagnosis and treatment of PHA both in China and abroad. Thus, it is necessary to develop an expert consensus through evidence-based medicine. Thirty-eight experts in plastic surgery, dermatology, rheumatology, and evidence-based medicine were engaged. Six clinical questions and recommendations were formed through two rounds of the Delphi survey. This consensus is for medical and scientific staff working in PHA-related occupations in all-level hospitals. It applies to children and adults suffering from PHA.