Patients without HE had a mean prolactin level of 28.8 ± 6.35 ng/mL, while levels increased progressively with grades 1, 2, and 3 encephalopathy (34.53 ± 9.04 ng/mL, 43.71 ± 5.61 ng/mL, and 43.2 ± 5.45 ng/mL, respectively, p < 0.001). Here, PRL is linked to hereditary elliptocytosis.