Xia Siyu is not foolish, so she naturally won't easily believe the search results. She also knows that search engines aren't very reliable these days, often putting paid ads and high-paying businesses at the top, while the genuinely informative stuff gets pushed to the back.
She clicks on the encyclopedia entry. Although, sure, the encyclopedia can contain false information too, it's generally more reliable than the chaotic "famous doctor online diagnosis" options below.
As expected, it starts off by saying: "First, determine whether it's physiological or psychological. If it's physiological, you need to see if it's congenital or acquired. Acquired ones can also have various factors, such as injury and collision..."
As Xia Siyu reads, she nods along, yes yes yes, it's an injury. But seeing Bo Yan walk quite smoothly this morning, he shouldn't have any major issues.
But psychological factors...