Alexithymia is the difficulty or inability of a person to recognize, identify, and describe their feelings or emotions. The term "Alexithymia" can be translated as "lack of words for emotions." This is not a condition that can be diagnosed, but rather a personality trait. Alexithymia often occurs more commonly in individuals with neurodivergent conditions, such as autism spectrum disorders.

The inability to identify emotions and the lack of expression of emotions can make it difficult for individuals with alexithymia to recognize signs and symptoms within themselves. People around them, such as friends or family members, may be more easily able to recognize these symptoms. Signs of alexithymia can include focusing on others' attention rather than their own feelings, difficulty in showing empathy, physical discomfort when experiencing emotions, and a tendency to not care about others' happiness.

Therefore, they tend to believe that alexithymia and autism often occur together.