It was similarly merged into autism spectrum disorder in the International Classification of Diseases (ICD-11) as of 2021.There is no single treatment, and the UKs National Health Service (NHS) guidelines suggest that treatment of any form of autism should not be a goal, since autism is not a disease that can be removed or cured. According to the Royal College of Psychiatrists, while co-occurring conditions might require treatment, management of autism itself is chiefly about the provision of the education, training and social support/care required to improve the persons ability to function in the everyday world. The effectiveness of particular interventions for autism is supported by only limited data. Interventions may include social skills training, cognitive behavioral therapy, physical therapy, speech therapy, parent training, and medications for associated problems, such as mood or anxiety. Autistic characteristics tend to become less obvious in adulthood, but social and communication difficulties usually persist.Some autistic people,  as well as a number of researchers, have advocated a shift in attitudes toward the view that autism spectrum disorder is a difference, rather than a disease that must be treated or cured. Critics have bemoaned the entrenchment of some of these groups opinions.In 2015, Aspergers was estimated to affect 37.2 million people globally, or about 0.5% of the population. The exact percentage of people affected is not firmly established. Autism spectrum disorder is diagnosed in males more often than females, and females are typically diagnosed at a later age.
However, in addition to this, various studies have reported a consistent comorbidity between AS and Tourette syndrome in the range of 8–20%, with one figure as high as 80% for tics of some kind or another,  for which several explanations have been put forward, including common genetic factors and dopamine, glutamate, or serotonin abnormalities.According to the Adult Asperger Assessment (AAA) diagnostic test, a lack of interest in fiction and a positive preference towards non-fiction is common among adults with AS. Speech and language
Although individuals with Asperger syndrome acquire language skills without significant general delay and their speech typically lacks significant abnormalities, language acquisition and use is often atypical. Abnormalities include verbosity; abrupt transitions; literal interpretations and miscomprehension of nuance; use of metaphor meaningful only to the speaker; auditory perception deficits; unusually pedantic, formal, or idiosyncratic speech; and oddities in loudness, pitch, intonation, prosody, and rhythm. Echolalia has also been observed in individuals with AS.Three aspects of communication patterns are of clinical interest: poor prosody, tangential and circumstantial speech, and marked verbosity. Although inflection and intonation may be less rigid or monotonic than in classic autism, people with AS often have a limited range of intonation: speech may be unusually fast, jerky, or loud. Speech may convey a sense of incoherence; the conversational style often includes monologues about topics that bore the listener, fails to provide context for comments, or fails to suppress internal thoughts. Individuals with AS may fail to detect whether the listener is interested or engaged in the conversation.