Eating undercooked pork sausage could make you sick.
When pork sausage is not fully cooked there could be some bacteria in the pork sausage that can lead to food poisoning.
So make sure you cook the pork sausage all the way through to avoid the possibility of getting sick.
When cooking pork sausage make sure both the inside and outside of the pork sausage is fully cooked to avoid potential food poisoning.
If there is just a tiny bit of pink color on the inside of the pork sausage then it's okay but make sure that there's not much pink color.