These are reasons why breasts seem to sag following weaning:
- Hormonal changes because of pregnancy bring about an increase in 
the glandular tissues and the amount of fat in the breasts. The breasts 
therefore grow in size and become engorged. The tightening of the skin 
as it stretches to accommodate this increase may cause the breasts to 
appear especially voluptuous during this phase. They continue to remain 
enlarged during breastfeeding. 
    
    
 - Once lactation stops, the tissues automatically reduce in size. 
    
    
 - As a result, the stretched skin now becomes loose, causing it to appear as if it has sagged.
 




