On 7/29/97 Melissa wrote about the mom of an 18 mo. old w/ milk only in right breast. On 7/30 Jan replied: "My guess is a variation of normal, but after weaning I'd suggest she have a mammogram just to make sure." Jan, I agree with you that this is probably normal. If it is a breast the baby doesn't prefer, then lack of stimulation could reinforce this by further reducing the supply on that side. What I don't understand is the need to wait for weaning (which for some of us could be several years ;-) before having a mammogram. I understand about the problems involved doing a mammogram during lactation...but if this breast truly is not producing milk, then shouldn't she be able to have a mammogram on just that side, to put her mind at ease? I hope someone who knows will answer this for me. I have fought twice for mammograms WHILE lactating (I have a HORRIBLE family Hx of cancer). One time I was nursing a 4 year old about once/week. In the end it had no effect on the reading of the mammogram, but I had to be quite "assertive" (verging on nasty) before they would do it. (I also find it odd that among the myriad pages of questions they ask, never have I been asked if I was lactating nor if I had ever lactated! I brought the subject up myself!) Anyway, I just hate the thought of this mom waiting months, or years, if there really is a problem. Doesn't the absence of milk make the mammogram OK? TIA Diane DiSandro, BA, IBCLC Audubon, PA--private practice