“…Many theories exist regarding the cause of nipple pain. Among the factors that allegedly contribute to such pain are dietary deficiencies and lack of exposure of the nipples to temperature variations and sunlight (Newton, 1952), breast engorgement that requires the infant to suck abnormally hard (Applebaum, 1970;Cerutti, 198l), improper positioning of the infant at the breast (Borovies, 1984;James, 1981;Lawrence, 1989;Schlegel, 1983;Wooldridge, 1986a), nutritional supplementation with formula that stimulates incorrect and unenthusiastic breastfeeding (Schlegel, 1983), use of schedules rather than demand feedings (Countryman, 1973), stimulating an unwilling infant to breastfeed (Schlegel, 1983), and vigorous infant sucking and prolonged breastfeeding episodes (Grassley & Davis, 1978). However, although these factors may well contribute to nipple pain, no empirical data support their association with such pain.…”