Haemolacria is a physical condition that causes a person to produce tears that are composed of blood. This rare phenomenon is rare, and has no specific cause but is more likely for fertile women to get it and seems to be induced by hormones.
Haemolacria can also be a symptom of other diseases. For example, it can mean a tumor in the lacrimal apparatus, or other factors such as bacterial conjunctivitis.
A woman named Twinkle Dwivedi from India has posed the greatest mystery for scientists and doctors. She spontaneously bleeds from her eyes and other body parts with no visible wounds. She's been the subject of research and tv shows.