The Gunners right-back sustained a heavy blow when Marcos Alonso caught him with an elbow in the process of scoring during Chelsea's 3-0 win on Saturday.
As a result, the 21-year-old was immediately substituted after just 17 minutes, having only just returned to the first XI following injury.
And Bellerin is now awaiting his MRI scan results.
The defender has confirmed that he was hit on the jaw rather than the top of the head by Chelsea's Alonso.
Hector Bellerin is a doubt for Arsenal against Hull this weekend following his blow at Chelsea
Bellerin is a doubt to start against Marco Silva's side
But according to The Sun, Arsenal will delay bringing him back into full contact sessions at London Colney until the end of the week – a day before their Premier League clash with Hull.
It means Bellerin is a doubt to start against Marco Silva's side, who have shown good form since his arrival as manager.
Gabriel is expected to slot in again at right-back if the Spaniard misses out, although he found life difficult against Chelsea and especially Eden Hazard.
Gabriel replaced Hector Bellerin at right-back for Arsenal at Chelsea but struggled
Should Chelsea's goal have stood after this challenge on Hector Bellerin?
Sat, February 4, 2017
Should have Chelsea's opening goal against Arsenal stood after this challenge on Hector Bellerin
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Should Chelsea's goal have stood after Alonso's challenge on Bellerin?
Hector Bellerin was caught in the jaw by Chelsea's Marcos Alonso rather than the top of the head
Medics at Arsenal do not believe Bellerin suffered any serious damage, but they are remaining wary until the results come back.
The FA suggest that players who are concussed should not feature again for 14 days, however, Arsenal will have the final say.
After the game against Hull at the Emirates on Saturday (12.30pm), Arsene Wenger's side travel to Bayern Munich for their Champions League round of 16 first leg.
And should Bellerin sit out this weekend, it is very likely he will be fit to face the German champions.