اشك خوني
يكي از علل اشك خوني وجود تومور در مجراي اشكي مي باشد
ساير علل شامل عفونت باكتريايي و شكستگي حاي حفره اربيت ميباشد

Haemolacria is a physical condition that causes
a person to produce tears that are partially
composed of blood. It can manifest as tears
that are anything from merely red-tinged to
appearing to be entirely made of blood.

Haemolacria is a symptom of a number of diseases,
and may also be indicative of a tumor in the lacrimal
apparatus. It is most often provoked by local factors
such as bacterial conjunctivitis, environmental damage
or injuries.

Acute haemolacria can occur in fertile women and
seems to be induced by hormones, similarly to
what happens in endometriosis