We can't even begin to help you with so little info.
Species, age, size, enclosure temps day, night, basking, pictures of tort and enclosure
Type of heat and lighting. Everything you can think of that has to do with his care.
Red footed tortoise 1.5 years old temp in day time is 85 temp in evening is 70 he eats dark leafy greens and veggies fruit 2x a week red basking light eco earth and moss is substrate plastic bin chicken 1x every 2 weeks vitamin powder on his food 2x a week