Crocodile tears are due to -
Cross innervation of facial nerve fibers
Cross innervation of trigeminal nerve fibers
Improper regeneration of trigeminal nerve
Improper regeneration of facial nerve
Crocodile tears (gustatory lacrimation):- There is unilateral lacrimation with mastication. This is due to faulty regeneration of parasympathetic fibres which now supply lacrimal gland instead of the salivary glands. It can be treated by a section of greater superficial petrosal nerve or tympanic neurectomy.