Bryson, from Clydebank, was jailed for eight years in February for raping two women.
The attacks were carried out in 2016 and 2019 while Bryson, who was born Adam Graham, was living as a man.
Bryson, who is in HMP Edinburgh, claimed: ‘I’m not doing too good because of abuse from the staff members, all because I am transgender, and other prisoners too.
‘This jail is full of transphobic people. The police are involved because of the abuse to do with my gender. People won’t stop being transphobic,’ Bryson said in a letter sent to the Sunday Mail.
Read more: Jailed trans double rapist Isla Bryson claims to have been victim of ‘hate crime’ in prison and suffered ‘transphobic abuse’ from fellow inmates and staff – as man, 24, is charged by police