The common causes of pain at the root of the big toe are the following: a. Acute injury, commonly after strenuous exercise or prolonged walking resulting in local contusions, strains, and inadvertent kicks can lead to injury at the root of the big toe, and in severe cases, fractures can occur, resulting in pain. Second, see the chronic strain injury, such as patients for a long time standing, walking, the nature of the work requires a high load of lower limb activities, will also cause cumulative injury, local pain, and in serious cases will cause fatigue fracture. Third, see in gout, due to high blood uric acid in the patient’s body, under the stimulation of unfavorable factors, such as alcohol, the local temperature decreases resulting in uric acid salt crystals, deposited around the big toe joint, resulting in pain at the root of the big toe, it is recommended that patients go to the hospital for a detailed examination to clarify the diagnosis.