### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a 6 week old daughter and her pediatrician tested her positive for microscopic blood in her stools. Her growth and weight are fine and the pediatrician said her stool looks fine as well. She wouldn t have even tested it had I not mentioned a green tint in her stool which at the time of mentioned was corrected after I did a little research and changed my breastfeeding methods so that my baby gets more hindmilk. Her pediatrician thinks it might be a food allergy but after a week of restricting my diet there is still microscopic blood in her stools. Could this be something else or nothing to worry about at all since she otherwise seems very healthy? I should mention she also has what the pediatrician thinks is thrush and a diaper rash but the pediatrician doesn t think the blood is coming from the diaper rash.

### output:

The most common cause of bloody stool in the newborn is cows milk protein allergy, It's very uncommon to have it in exclusive breastfed infant, restricting the diet of you by removing diary products can help with this but not all the time, unless there is frank blood, poor weight gain or anemia you should not worry about it. The less common causes are : -Anal fissure from constipation , which is common after the 3rd week of life.-vitamin K difference which is common in exclusive breastfed babies unless given a shot of vitamin K shortly after birth which is standard.-less common causes like Michele's diverticulum and necrotizing enterocolitis are very unlikely in your babies case Remember always to check your nipple for cracks, because if the baby socks blood, it will appear in here stool. I hope this helps