To evaluate thyroid dysfunctions in women suffering from abnormal uterine bleeding. Materials & methods: Total of 100 diagnosed cases of Abnormal uterine bleeding were enrolled in the study. Approximately 4 ml venous blood sample was collected in a yellow capped plain vial, from antecubital vein under strict aseptic conditions following the universal precautions. Centrifugation was done at 3000rpm for 10 minutes and separated serum was stored at -20°C until analysis. Serum triiodothyronine (T3), Thyroxine (T4) and thyroid stimulating hormone (TSH) level were measured by chemiluminescence assay on autoanalyzer. Assessment of the results was done using SPSS software. Results: Out of the total cases of abnormal uterine bleeding, 15 subjects had thyroid dysfunction. Rest 85% of total cases of AUB were euthyroid. Out of cases with thyroid dysfunction, hypothyroid was most common followed by subclinical hypothyroid and hyperthyroid.