Train sound and baby hearing/damage?

I think that you did the right thing going back inside we live next to the railroad tracks as well as an airport and we didn’t let little man outside while they where going by till we got his ears used to loud things by slowly we played music louder and louder each cafe ride and we would do construction around him oh the house and he slowly got used to it he’s 8 months old now and loves when the train goes by or when the plains are taking off

I think it’s very likely he was just super startled. My 8 month old still gets easily scared by the sound of a loud car driving by outside or even loud unexpected laughter! He doesn’t seem bothered by loud noises he expects but when they are a surprise it totally shocks him and makes him jump and cry almost the way he does when he gets hurt. as long as your baby seems to be responding normally to auditory cues and he should be OK. You definitely want to be careful about repeatedly exposing him to loud noises such as a train horn because their hearing is sensitive. But of course if you’re concerned at all the best thing to do would be visit the pediatrician. They can easily perform a hearing test.

I live next to very busy train tracks and they blow their horn in my backyard at least a few times every day. My daughter is fine. Her hearing is perfect and she doesn't even flinch when she's sleeping. Baby was probably just a little spooked by it.