In the past, many questions have surfaced pertaining to ratio of males to females diagnosed as having autism. Recent studies have suggested that the prevalence of autism is about one in 100. However, what it comes to Autism in girls or the male/female ratio pertaining to autism, it an different question altogether. Although, there is still lack of hard or conclusive evidence of numbers, but various studies have brought together anecdotal evidence which states the male\female ratio ranging from 2:1 to 16:1.