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Hypertransaminasemia is a common extra-intestinal manifestation of celiac disease., Aim: To analyze the frequency of hypertransaminasemia, clinical and anamnestic, serological and morphological picture in children in the active period of celiac disease., Materials and Methods: The study included 272 children with celiac disease aged from 8 months to 17 years. The patients were divided into two groups: the first - children with hypertransaminasemia, the second - without hypertransaminasemia., Results: Hypertransaminasemia was detected in 55.9% of children with celiac disease. The age of manifestation of the disease in the first group was 1.0 [0.5; 2.0] years, in the second group - 1.9 [0.5; 4.0] years ( p =0.0004). Children of the first group were diagnosed at 2.5 [1.7; 4.9] years, the second group - at 4.9 [3.0; 10.8] years ( p <0.001). The duration of the latency period in children of the first and second groups was 1.4 [0.6; 3.1] years and 2.4 [0.9; 4.3] years, respectively ( p =0.002). The average values of IgA anti-tTG antibodies in children of the analyzed groups did not differ, and the indicators of IgG anti-tTG antibodies in the first group were 1.6 ( p =0.04) times higher. The level of EMA in children with hypertransaminasemia was 2 times higher than in children without hypertransaminasemia., Conclusion: Hypertransaminasemia is more often detected in young children with early manifestation of the disease, increases with the deepening of atrophy in the mucous membrane of the small intestine. Higher titers of celiac-specific antibodies were detected in children with hypertransaminasemia.