Infant refusal of one breast only may be cause for alarm.  It is possible
that breast cancer may develope in that breast.  I would recommend a visit
to an OB/GYN for a breast exam and possible mammogram.

"There is, however, some evidence...that following an experience of the
infant rejecting the breast without apparent reason, a woman may be more
likely to develop breast cancer in the rejected breast.  In such cases close
surveillance is probably needed."  BREASTFEEDING AND HUMAN LACTATION
(Auerbach and Riordan).

Donna Zitzelberger RN BSN  IBCLC