The resting period of pterygium is uncertain and can range from months to decades, and the length of the resting period varies for each individual. Pterygium is a conjunctival disease caused by a variety of factors, including ultraviolet light and heredity, and is mainly characterized by vision loss. Pterygium can be categorized into stationary and progressive stages according to the disease state. In the stationary stage, the lesion grows slowly and the danger is small, Stocker’s line can indicate that the lesion is in the stationary stage; in the progressive stage, the lesion grows faster and the danger is large. Pterygium in the stationary stage generally do not need treatment, sand and sunlight stimulation can accelerate its transition to the progressive stage, so pterygium patients need to try to avoid sunlight, sand and wind stimulation, and develop good eye habits. The speed of transition from stationary to progressive stage varies among different individuals, ranging from a few months to several decades. Surgical treatment such as pterygium excision and subconjunctival transfer should be performed as prescribed by the doctor. When pterygium is suspected, it is important to consult a doctor and choose the appropriate treatment after examination and evaluation in order to avoid delaying the condition.