Because Yang Ping had indeed performed surgeries more difficult than Mai Zijing's in the past, not just one, he didn't feel as if facing a great enemy and appeared very relaxed, treating Mai Zijing's case as a common one.
This, instead, made Mai Jifu and An Yinghui feel uneasy amidst their excitement, their hearts always fluctuating wildly.
In the past, when they took their son for treatment, no matter which hospital or which expert, it was always a matter of great urgency; the expert would visit several times a day, incessantly asking questions, continuously examining, and ceaselessly discussing the condition, to ultimately come up with no good solutions.
But now, Professor Yang was acting as if nothing was out of the ordinary, only seeing Mai Zijing once and then never visiting again, which made the couple very nervous.