Many people have experienced tearing and many patients have come to the hospital for this reason, so we briefly introduce those cases of tearing that require medical attention. 1. Tears after trauma. If you have tears or even pus after receiving trauma to the face, you need to come to us for an examination, which may be caused by damage to the tear ducts causing dacryocystitis or tear duct obstruction. 2. Tearing that cannot be relieved in one or both eyes for a period of time. In this case, it is also necessary to come to the clinic, which may be caused by the obstruction of secretions in the tear duct. 3.There is a lump in the corner of the eye accompanied by lacrimation or pus. This condition is mostly seen in middle-aged and elderly women, and is a manifestation of chronic lacrimal sac inflammation, which needs to be seen and, if necessary, surgically treated. The above is a relatively simple and easy to understand method to determine the nature of lacrimation, such as not very sure should also promptly seek medical advice.