Nasolacrimal System is Why the Nose Runs with a Good Cry [VIDEO]

When a person cries, it is common for the nose to start running. Essentially what happens is that the tears actually drain from the eye into and then out the nose. Tears are normally produced by the lacrimal gland located on the upper outer corner of the eye as well as the conjunctiva in order to protect the eyes and keep them moist. The tears flow across the eye and drain through tiny holes called puncta located in the inner corners of the upper and lower eyelids. The tears then travel into the lacrimal canal before they eventually flow into the nasolacrimal duct before emptying into and out the nose.

This is why your nose runs when you have a good cry. Watch the video for more details!