For decades, autism has been seen as a 'boy's condition.' Parents, teachers, and even doctors have been trained to spot the signs in boys from an early age. But a groundbreaking study from Sweden is changing this picture entirely—and it has major implications for families raising teenage daughters here in Singapore.
Researchers tracked nearly 3 million people over several decades and discovered something surprising: while boys are diagnosed with autism much more often during childhood, girls catch up significantly during their teenage years. By the time they reach early adulthood, the number of boys and girls diagnosed with autism is nearly equal. In other words, many girls aren't being missed by chance—they're being diagnosed later, sometimes years after their male peers.
Why are girls diagnosed later?
The answer isn't that girls are somehow 'less autistic.' Rather, girls tend to 'mask' or 'camouflage' their autism differently than boys. They may be quieter, have fewer obvious repetitive behaviours, or work harder to fit social expectations. A girl might struggle intensely with sensory sensitivities or social situations but hide it well enough that teachers and parents don't notice. By teenage years, when social demands increase and the effort to keep up becomes exhausting, the signs become harder to ignore.
What this means for Singapore families
If you're parenting a teenage girl in Singapore, this research is a wake-up call. The pressure-cooker environment of our education system—with its emphasis on academic performance and social conformity—may actually make it harder to spot autism in girls. A girl struggling silently with the sensory overload of a crowded classroom or the social complexity of friendship groups might simply be seen as 'shy' or 'not trying hard enough.' Her anxiety, fatigue, or difficulty with transitions might be attributed to academic stress rather than neurodivergence.
In Asian cultures, where there's often an expectation for children (especially girls) to be well-behaved and compliant, autistic girls may work even harder to mask their differences. This can lead to burnout, anxiety, and depression that goes unrecognised and unaddressed.
The good news? Once you know what to look for, you can get your daughter the right support. An autism diagnosis isn't a label to fear—it's a key that unlocks understanding and access to strategies that actually work for how her brain is wired.
What you can do
- Watch for different signs in girls: Rather than waiting for obvious repetitive behaviours, pay attention to social exhaustion, intense interests (even if they seem 'typical'), difficulty with change, sensory sensitivities, and anxiety. Notice if your daughter seems to 'switch off' after school because she's been working hard to fit in all day.
- Don't assume she's just stressed or shy: If your teenage girl is struggling academically, socially, or emotionally, consider getting an evaluation from a professional experienced with autism in girls and young women. Many child psychiatrists in Singapore now understand that autism presents differently in girls.
- Talk to her directly: Teenage girls are often self-aware enough to articulate what they're experiencing. Ask open questions: 'Do social situations feel exhausting?' 'Are there things that overwhelm your senses?' 'Do you feel like you have to work harder than others to understand social rules?' Listen without judgment.
The Swedish research reminds us that autism isn't rare in girls—it's just been overlooked. By staying alert and questioning old assumptions, you could unlock answers that change your daughter's teenage experience and beyond.