How to get my 1 month poop?

thermometer in his booty.

Why do you want to get him to poop?

My grandma is old skool. She did a little Karo syrup mixed with water and it worked for my son

But you may want to make sure it's safe for a 1 month old first.

1/2 tsp of prune juice ask the pediatrician if thats ok for your little one or even suppositories or formula switch