My MIL has this weird thing where she thinks all of her baby grandsons have abnormally large heads which should be checked out by a doctor . Granddaughters are fine it ' s only the boys . My son is her 6 th grandson , so she had said this about 5 boys before him . Right after my son was born , she started in with the big head thing . The first 2 times she mentioned her concerns , I responded firmly and politely that he was doing well at all his checkups and his pediatrician had mentioned no concerns . I ' m not going to repeat what I said the third time she told me His head is too big for his body . You need to get that checked out by a doctor because he might have some kind of syndrome or disorder . But she finally STFU for once in her life , and she ' s never suggested there was something wrong with any of my kids after that .