Pestle finger usually cannot be restored to its original form. Pestle finger is a characteristic clinical manifestation, pestle finger mostly involves both sides of the fingers and toes, the first knuckle of the phalanges is thick, mainly refers to the fingers, the end of the toes is abnormally enlarged deformity, the shape of the phenomenon like a pestle. Pestle finger is an irreversible clinical symptom, and once formed, it is usually difficult to return to its original form. Pestle finger is most common in tuberculosis, bronchodilatation, chronic obstructive pulmonary emphysema, silicosis, interstitial pneumonia and other lung diseases, in addition, cyanosis congenital heart disease, cirrhosis of the liver, chronic pyelonephritis, hyperthyroidism and other diseases, and living in the plateau for a long time may also cause such symptoms. It is recommended that the patient should seek medical examination in time, and carry out targeted treatment after clarifying the cause of the disease, develop good living habits, maintain a good mindset, stable emotions, and have regular medical checkups every year.