The bones of the big toe may be related to these three conditions: 1, wearing unsuitable shoes for a long time, such as high-heeled shoes, sloping heels, etc., because the bunions are squeezed for a long time, friction, uneven force on the foot caused by bone deformation, usually wear loose shoes as little as possible to walk, to prevent the bones from protruding wear and tear caused by pain. 2, may be the foot has been injured, the toe at the cold led to soft tissue hyperplasia at the joint, triggering the bones to protrude. The bunions may also be caused by tendonitis, which requires anti-inflammatory and pain-relieving medication. The above three conditions can cause the bones of the big toe to protrude, does not affect daily life, but with the cold weather will cause pain, it is recommended to go to the hospital to do a detailed examination to clarify the cause of symptomatic treatment.