Can a 70 year old woman lactate?

Yes, a 70-year-old woman can potentially lactate, though it is highly unusual and typically requires specific hormonal stimulation, such as from pregnancy, breastfeeding, or hormone therapy. The ability to lactate decreases significantly after menopause due to the decline in estrogen and progesterone levels. However, there have been rare cases where women have been able to induce lactation later in life through various methods.