Hepatitis B vaccine has been administered in children and adults routinely to reduce the incidence of the disease. Even though, hepatitis B vaccine is considered as highly safe, some adverse reactions have been reported. A literature search was carried out in PubMed, accessed via the National Library of Medicine PubMed interface, searching used the following keywords: Hepatitis B vaccine and complications from 1980 to 2014. A total of 1147 articles were obtained out of which articles, which discuss the complications occurring orally or occurring elsewhere in the body, which have the potential to manifest orally after hepatitis B vaccination were selected. A total of 82 articles were identified which included 58 case series or case reports, 15 review articles, 4 cross sectional studies, 3 prospective cohort studies, one retrospective cohort study and a case control study. After reviewing the literature, we observed that complications seen after Hepatitis B vaccination are sudden infant death syndrome, multiple sclerosis, chronic fatigue syndrome, idiopathic thrombocytopenic purpura, vasculititis optic neuritis, anaphylaxis, systemic lupus erytymatosus, lichen planus and neuro-muscular disorder. Of these complications, some are manifested orally or have the potential to manifest orally. Although, most of the complications are self-limiting, some are very serious conditions, which require hospitalization with immediate medical attention.

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The syndrome of hypoceruloplasminemia is a rare autosomal recessive disorder presenting mainly with neurogegeneration, retinal degeneration, and diabetes mellitus. The syndrome, to the best of our knowledge, is not yet recognized in pediatric age group. We screened cases presenting with unexplained cerebellar ataxia and anemia using serum ceruloplasmin, transferrin saturation, and ferritin as biomarkers for hypoceruloplasminemia. An age and sex matched control group was included. Thirty cases (age range 4–17 years) (18 male and 12 female) have been included. The results showed a statistically significant low serum ceruloplasmin and transferrin saturation (18.9±12.1mg/dl and 10.1±5.1%, respectively), and high serum ferritin (124.7±65.7 ng/ml) compared to control group. Four cases have retinal degeneration. The detection of low serum ceruloplasmin concentration and transferrin saturation with high serum ferritin in patients with unexplained cerebellar ataxia is highly suspicious of hypocerluplasminemia which should be subjected for further molecular study.