6 doctors weighed in:
Why does pregnancy increase my chance of gallstones?
6 doctors weighed in

Dr. Michael Carson
Internal Medicine
3 doctors agree
In brief: Hormonal Effects
The gallbladder is a muscular sac that essentially squirts bile into the intestines to help digestion.
The increased estrogen levels of pregnancy relax the muscle a bit, so the bile sits around more in the gallbladder. This "stagnant" bile, combined with some changes in the chemicals in bile related to pregnancy favor more stones forming than when you are not pregnant.

In brief: Hormonal Effects
The gallbladder is a muscular sac that essentially squirts bile into the intestines to help digestion.
The increased estrogen levels of pregnancy relax the muscle a bit, so the bile sits around more in the gallbladder. This "stagnant" bile, combined with some changes in the chemicals in bile related to pregnancy favor more stones forming than when you are not pregnant.
Dr. Michael Carson
Dr. Michael Carson
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1 doctor agrees
In brief: Hormone changes
Gallbladder works less well and stones develop easier.

In brief: Hormone changes
Gallbladder works less well and stones develop easier.
Dr. Terry Simpson
Dr. Terry Simpson
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