I am 47 youngest child 11 had partial hysterctomy and just been diagainosed with infection in breast due to childbirth. how is this possible?

That : That is an unusual situation. It is very rare for women who are not breastfeeding to get a breast infection ("mastitis"). I would like to be sure that you have had a mammogram and complete breast assessment. Please recheck with your physician and see if you need a mammogram or other breast testing to rule out something more serious. There are some conditions that can look like a breast infection but are more serious, such as a malignancy.

To clarify: You were likely diagnosed with mastitis, which is an infection of the breast tissue. Although most commonly seen in lactating females who have just given birth, it can also be seen in women who are not postpartum, although that is much rarer. The treatment of mastitis is the same regardless of whether or not a patient has recently given birth: antibiotics. Hope this helps!