This is still the norm in mainland China, though the marriage law explicitly states that a child may use either parent's surname. It is also common for two children born to the same parents to take different surnames, one after the father and the other after the mother. It is also possible, though far less common, for a child to combine both parents' surnames.[51] Due to Western influence, some areas of greater China, such as Hong Kong and Macau, have also adopted the tradition of women changing their last name, or prepending their husband’s to her own.