Due To Breastfeeding her Breast is look like small...

How to treat small breast size

the cause of small breast may be due to low estrogen level in the body so to increase its level then you should avoid stress and should eat enough calories to avoid loss of weight below the normal  which may decrease the level of estrogen and in severe cases you can take estrogen containing medication under physician supervision and another possible cause of small breast size is is the presence of hypothyroidism which can be treated by levothyroxine

How to diagnose small breast size

you should be assessed by the physician and has the level of estrogene in the blood analysed to exclude low estrogen level in the body also thyroid function test can be done to exclude hypothyroidism

What are the causes of small breast size

loss of weight
stress
strenuous exercise
low estrogen level
hypothyroidism

advice

you should follow up with the physician to has the lab tests done and to provide the treatment