ABSTRACT Introduction.- Estimation of blood loss following delivery is an essential part of obstetric practice. Visual estimation of blood loss and postpartum hematocrit change are two commonly used methods of estimating blood loss following delivery. There is the need to study the relationship between both methods to aid standardization. Objective. To assess the average blood loss using visual estimation and the average change in postpartum hematocrit following vaginal delivery and to study any relationship between both. Materials and Methods. A cohort study involving 152 parturients who had vaginal delivery and in whom the blood loss at delivery was visually estimated, and an intrapartum and 48 hour postpartum hematocrit evaluation was done. Results. The average visually estimated blood loss following vaginal delivery was 317  197.5mls with a primary postpartum hemorrhage rate of 7.8% and over 60% of the parturients had minimal visual estimated blood loss of  200mls. The average hematocrit change following vaginal delivery was -0.74  3.99% with 53.29% of parturients having either no change or an increased postpartum hematocrit. An increase in average blood loss was associated with a progressive change in hematocrit values from positive to negative and there was a statistically significant negative correlation between both variables - Spearman’s correlation coefficient was -0.313 with a P value  0.01. ii Conclusion. There is a negative, significant but non-linear correlation between visually estimated blood loss following vaginal delivery and postpartum hematocrit change. Other factors are also believed to affect the relationship. There is need for further research to determine factors that affect this relationship. Recommendations. Parturients who are dehydrated should be closely monitored especially in the immediate postpartum period as they could develop anaemia even in the face of visually estimated normal blood loss following delivery. Also, there is need for training of accocheurs to improve the accuracy of visual estimation of blood loss. Larger studies also need to be conducted to help review the necessity or otherwise of routine hematocrit evaluation following visual deliverY