Sudden pain in the foot may be due to the following reasons: 1, first of all, the most common is the foot of a variety of acute and chronic injury triggered by the pain symptoms, such as the foot by the acute acute sharp force injury, blunt force injury, crush contusion, crushing injury, and so on. These injuries can lead to significant tissue damage in the feet, inducing significant inflammatory mediator discharge, which leads to localized pain symptoms. 2, leading to sudden pain in the feet may also be the cause of an acute attack of various diseases, including localized rheumatoid arthritis, rheumatoid arthritis, and gouty arthritis and other diseases of the acute attack. These diseases, once attacked, can lead to a certain part of the joints, such as the foot pain produced.3, foot sudden pain, there may be due to pathologic fracture or acute injury caused by the fracture triggered.