The big toe is called the first toe and is divided into two sections, while the other toes are divided into three sections. The bunion and other toes are more robust in terms of bones, while other toes are smaller. The foot big toe and the first metatarsal form the first metatarsophalangeal joint, common abnormalities are as follows: 1, women wear high heels for a long time is too much local pressure, easily lead to the first metatarsophalangeal joint degeneration, thus causing the first metatarsophalangeal joint osteoarthritis. Patients will have pain, swelling, limited activity, and in serious cases, require surgery; 2, the first toe is prone to valgus deformity, also associated with wearing high-heeled shoes, pointed shoes, patients will show the inner side of the first toe redness, swelling, pain, can form bunions, bunion deformity, and can affect the second toe, severe pain will also affect normal walking, serious cases need to consider surgery.