Twins look different mainly due to dizygotic twins. Dissimilar twins are two egg cells that are fertilized at the same time to form a fertilized egg and are implanted in the uterine wall within the meconium layer to develop into twins, which develop into two separate individuals, each of which should not have exactly the same genetic inheritance, for example, gender, blood type and so on, which can be the same or different. The two fetuses have separate placentas, chorionic villi and amniotic membranes, the blood circulation between the two placentas is not connected, and each of the two fetuses is in its own sac, and the two amniotic membranes are separated by a septum made up of two layers of amniotic membrane and two layers of chorionic villi. Mothers are advised to go to the hospital regularly for maternity checkups to know the physical development of the fetus. They should pay attention to supplementing proteins and vitamins in their life and eat more fresh vegetables and fruits to promote the development of the fetus.