Plain Facts for Old and Young by John Harvey Kellogg

23. _Lack of development of the breasts_ in females, after puberty,

is a common result of self-pollution. Still it would be entirely unsafe to say that every female with small mammary glands had been addicted to this vice, especially at the present time when a fair natural development is often destroyed by the constant pressure and heat of "pads." But this sign may well be given a due bearing.