A teenager who shaved his head to raise money for charity has returned to class after being put in isolation for four days by his school.
Stan Lock, 14, a pupil at Churchill Academy, North Somerset, said he wanted to raise funds for Macmillan "because cancer affects so many people".
He got the "number one" haircut a week ago after a rugby match.
A Just Giving page, set up to raise £100 for Macmillan Cancer Support, has now raised more than £17,000.
Stan's mother, Melanie Rees, said it was "overwhelming" and that "people have been very, very generous".
Stan returned to class on Monday following a meeting between the school, the governors and his parents.
Ms Rees said it was "fantastic" her son was now back in class.
"The school have said that they will have a look at the policy and whether the head can have some flexibility," she said.
"We weren't aware there was policy over length of hair."
Churchill Academy teaches some 1,500 pupils aged up to 18.
"As far as this specific matter - and we remain reluctant to discuss individual students in public - things are back to normal and an amicable meeting has occurred with the family," a statement from the school said.
"With a wider perspective, there will be further discussion regarding the consistent application of stated policies and the importance of timely consultation."