Abstract : Abnormal uterine bleeding is one of the main gynaecological complaints encountered by the ayurvedic physicians nowadays. It may be defined as any bleeding from the genital tract which is a deviation from the normal in frequency, cycle and quantity . The conditions in which there is abnormal vaginal bleeding occurs is explained under different entities in ayurveda. Some of them are raktayoni, lohitakshaya, asrigdara, nashtartava, artavakshaya etc. Although most of the menstrual disorders are due to vata and pitta , the way in which they vitiate( samprapti) varies. The modern science have clearly given the classification of PALM-COEIN to explain the causes of abnormal uterine bleeding in non gravid women of reproductive age group. A detailed analysis of abnormal uterine bleeding seen in nongravid women explained in ayurvedic classics will be done which will help in diagnosing with samprapti ghatakas and give clear knowledge to samprapti vighatana (cikitsa) of the disease.