Typical indications include epiphora and dacryocystitis. This leads to the excess overflow of tears called "epiphora" (chronic low-grade nasolacrimal duct occlusion). Obstruction of the nasolacrimal duct leads to the excess overflow of tears called epiphora. Rhinoliths can cause nasal obstruction, epistaxis, headache, sinusitis and epiphora. Infection of the nasolacrimal duct can result in chronic epiphora (excess tearing). In such cases, late treatment of persistent epiphora usually requires dacryocystorhinostomy. Diagnosis of epiphora is clinical by history presentation and observation of the lids. It is also known as epiphora and occasionally as antistrophe. In contrast, an epistrophe (or epiphora) is repeating words at the clauses' ends. If epiphora is caused by ectropion or entropion, lid repair is indicated. Epiphora is an overflow of tears onto the face, other than caused by normal crying.