In addition to surgery, parents of children with bunions often ask about the heredity of bunions. Can bunions be inherited? The first thing we need to know is the cause of the bunion. Floating bunions were previously a rare congenital hand deformity, but in recent years there has been a significant increase in the number of babies with floating bunions coming to my clinic. When each baby arrives, I ask both parents if there is a family history of the condition, or what the mother was exposed to during pregnancy, and so on. However, in all the cases I have seen, I have never seen a child with a floating bunion whose parents or grandparents have a floating bunion. As to whether the mother was exposed to anything during pregnancy, it is difficult for anyone to recall. Therefore, it is difficult to determine the onset of floaters, and a large amount of data also indicates that the cause of floaters has not yet been clarified, and it requires larger case data for further study. Although the specific cause of floating bunions is not clear, it is probably related to nutritional deficiencies, fetal neurogenic injury, maternal viral infections, the effects of drugs (especially the sedative thalidomide) and hypoxia. Parents can pay more attention to these aspects when preparing for pregnancy, try to maintain a happy mood, physical health, and try to stay away from second-hand smoke, formaldehyde and other harmful substances when pregnant, are effective in reducing the chances of giving birth to a baby with floating bunions.