Selective mutism previously known as “elective mutism” is an anxiety disorder very common among young children, characterized by the inability to speak in certain situations. It should not be confused with someone who is mute and cannot communicate due to physical disabilities. Selectively mute children are able to communicate in situations in which they feel comfortable. It is very common for symptoms to occur before the age of five and do not have a set time period. Not all children express the same symptoms. Some may stand motionless and freeze in specific social settings and have no communication. This condition has nothing to do with Alalia.