KCNQ2-related disorders represent a broad continuum of epileptic phenotypes caused by a heterozygous variant in KCNQ2. The clinical features of KCNQ2-related disorders range from mild forms, as benign familial neonatal seizures 1 (BFNS1, [MIM:121200]), to very severe ones, as early infantile epileptic encephalopathy 7 (EIEE7, [MIM:613720]). Here, KCNQ2 is linked to Benign familial neonatal seizures.