Bunion
Classification and external resources
ICD-10	M20.1
ICD-9	727.1
DiseasesDB	5604
eMedicine	orthoped/467
MeSH	D006215

A hallux valgus, also called bunion, is when the bone or tissue around the joint at the base of the big toe becomes larger. The big toe (hallux) may turn in toward the second toe, and the tissues around it can become swollen and red.