Background: AUB, or abnormal uterine bleeding, is among the most prevalent clinical manifestations. Ten to twenty percent of women aged 15 to 50 experience it. The present study was conducted to assess thyroid dysfunction in patients with abnormal uterine bleeding.

Materials & Methods: 105 patients with abnormal uterine bleeding were selected. Assessment of serum triiodothyronine (T3), thyroxine (T4), and thyroid stimulating hormone (TSH) level was done.

Results: Age group 18-27 years had 25, 28-37 years had 45 and 38-47 years had 35 patients. The difference was non- significant (P> 0.05). The level of tri- iodothyronine was normal in 85, increased in 5 and decreased in 5, level of thyroxine was normal in 87, increased in 6 and decreased in 2 and level of TSH was normal in 81, increased in 9 and decreased in 5 patients. The difference was significant (P< 0.05). Out of 105 patients, 88 were euthyroid, 10 had hypothyroidism and 7 had hyperthyroidism. Under hypothyroidism, 4 had menorrhagia, 3 had oligomenorrhoea, 1 had menometorrhagia, and 2 had polymenorrhoea. Under hyperthyroidism, 3 had menorrhagia, 2 had oligomenorrhoea, 1 had menometorrhagia and 1 had polymenorrhoea. The difference was significant (P< 0.05).

Conclusion: Menorrhagia, oligomenorrhea, menometorrhea, and polymenorrhea were complaints of patients with abnormal uterine bleeding.