Haemolacria is defined as having blood in the tears. It is an extremely rare phenomenon and is both concerning for physicians and, as you can imagine, the patients and their families. It was first noted in the literature in the 6th century and then 1000 years later in the 16th century. Since then there have been very few cases that have been reported in the literature. Due to the limited literature and number of cases of haemolacria there is no known pattern or prevalence of the condition within any given demographic. There have, however, been a number of different causes and associations of haemolacria which will be mentioned below.