Because many old people used to like to leave a flat head for their children, but now everyone thinks that a flat head will not only affect their IQ, but also make their faces look big, so many mothers want their children to have a full head. But the baby's head shape is basically inherited from his parents, so if both parents are flat-headed, then the baby is probably flat-headed, and no matter how to correct it, it will not have much effect.
However, when the baby is born, his skull is soft. If he keeps the correct sleeping position, some changes can occur. However, those online celebrity correction helmets are still not recommended for everyone to buy, because children's movements are soft and fragile. If the correct methods are not used during correction, it is likely to affect children's growth and development.
Newborns are generally sharp at birth, because the baby's head is squeezed during childbirth. But as time goes on, the baby's head shape will also change. Generally speaking, the baby's head will be shaped between one year old and one and a half years old. If you want to change your baby's head shape, you'd better correct it before one year old.
But the baby's flat head and round head are normal, so don't worry too much. If it does not affect the normal development and growth of the baby, there is no need for external interference. If you really want to change your baby's head shape, you should go to a professional hospital to consult a doctor. Don't buy some corrective helmets online, otherwise it will do harm to your baby's body.