This was an observational study carried out on 200 consecutive women in the age group of 15 – 45 years, who attended the skin OPD of a tertiary level urban hospital with the complaints of loss of hair from the scalp. The aim was to find out the prevalence of various etiological conditions associated with various types of non-scarring diffuse hair loss among Indian women. After a thorough history and physical examination, relevant test including CBC, TSH, T3 T4 were undertaken. Chronic telogen effluvium (71 / 200, 35.5%), female pattern hair loss (70 / 200, 35%) and Telogen effluvium (46 / 200, 23%) were the most common non scarring diffuse hair loss, found in adult women of reproductive age group. Apart from anemia which is very common (75 out of 200 cases, 35.5 %) across all types of diffuse hair loss cases, fever (7/46, 15.21% of TE cases), postpartum hemorrhage (5/46, 10.86%) and emotional stress (4/46, 8.69%) were the common triggers for Telogen effluvium; hirsutism (6/70, 8.57%), obesity (6/70, 8.57%), polycystic ovarian disease (4/70, 5.71%), hypothyroidism (4/70, 5.71%) and diabetes (4/70, 5.71%) were the common associated conditions in Female pattern hair loss; and hypothyroidisms (11/71, 15.49%) and polycystic ovarian disease (6/71, 8.45%) were common in Chronic telogen effluvium. Anemia (75 out of 200 cases, 35.5 %) and abnormal thyroid functions (23 out of 200 cases,11.5 %) were the two most common co-morbidities found across all types of Diffuse hair loss in women. Apart from anemia a large number of patients of Diffuse hair loss (90 / 200, 45.5%) had an associated condition, which necessitate a thorough examination and relevant investigations in all cases of diffuse hair loss so that the associated conditions can be detected and appropriate treatment be instituted.