Gum recession is divided into two types, a pathological recession and a physiological recession. Pathological recession is impossible to recover. Gum recession is not a diagnostic term, it is just a symptom of periodontal disease, similar to sneezing and runny nose in a cold, it is impossible to recover. Pathological atrophy like this, we can only detect and treat it as early as possible through regular oral health care, regular oral examination, and then regular periodontal cleaning, which can only interrupt it and prevent it from spreading, but it is impossible to stop it from atrophying. Physiological recession, as we age, all gums will undergo physiological recession, so it is impossible to recover from gum recession. We can only slow down its progress, so we have to do regular oral health care. Regular oral checkups, basic periodontal cleaning once every 6-12 months of the year, and then early detection and treatment.