The fattest child in the world who weighs 31 stone at just ten years old will undergo weight loss surgery in a bid to save his life.

Mohammed Arbrar, from Pakistan, struggles to stand after regularly eating meals meant to feed four adults.

Despite weighing just 8lb at birth, he began gaining weight rapidly – tipping the scales at three stone when he was just six months old.

His doctors say he is the fattest boy in the world, weighing even more than Indonesian Arya Permana, who hit the headlines for weighing 29 stone aged ten, three years ago.

His parents, who have two other healthy children, said Mohammed was perpetually hungry as an infant and would drink five times as much milk as his elder siblings.

Mohammed Arbrar, from Pakistan, is the world’s fattest child weighing a whopping 31 stone at just 10 years old

Despite weighing just 8lb at birth, he began gaining weight rapidly – tipping the scales at three stone when he was just six months old

Now he is set to undergo life-saving gastric band surgery to curb his food intake. Pictured: Mohammed in the hospital

He was so heavy that his mother Zareena could not change his nappies alone and had to get a specially-made bed to take his weight.

She said: ‘He weighed eight pounds at birth but his weight never stopped growing.

‘He used to drink two litres of milk when he was only two years old. It was like his stomach never filled up. He always cried for more food.

‘It was very difficult for me to even carry him. We had to make a special swing and a bed for him to change nappies.’

With his massive frame, even basic activities like walking and sitting are an uphill task for the pre-teen boy.

Despite having three siblings, Mohammed, pictured age five, cannot play with them as he cannot take more than three steps at a time

Despite having three siblings, an older brother and a sister and one younger sister, Mohammed cannot play with them.

He has never been to school because he cannot take more than three steps at a time.

But now, his parents are hopeful that Mohammed could be a normal weight after the country’s best-known bariatric surgeon, Dr Maaz ul Hassan, agreed to perform a life-saving operation.

Mrs Abrar said: ‘We had never heard of obesity. When he was a baby, he was beautifully plump and we were proud of his frame.

‘By the time he was six years old, he was already 15 stones and ate meals meant for four adults.’

While Abrar’s parents made a conscious decision to never feed him junk food, he could easily gobble down four plates of rice or 10 chapattis with chicken curry at one go.

Mrs Abrar added: ‘His hunger was never satiated. Whatever I cooked, he would finish half the food and the rest of the food was eaten by five of us.’

Abrar’s alarmed parents took him to several doctors to seek medical help, putting him on strict diets but young Abrar could not follow the regimen often giving up on it due to his appetite.

The desperate parents finally met Dr Maaz two months ago who showed them a way through bariatric surgery – a procedure of achieving weight loss by reducing the size of the stomach using a gastric band.

His mother added: ‘We struggled a lot finding the right treatment for him. We never lost hope of getting medical help.

The country's best-known bariatric surgeon, Dr Maaz ul Hassan, pictured together, has agreed to operate on Mohammed

The country’s best-known bariatric surgeon, Dr Maaz ul Hassan, pictured together, has agreed to operate on Mohammed

His mother Zareena said: 'His hunger was never satiated. Whatever I cooked, he would finish half the food and the rest of the food was eaten by five of us'

His mother Zareena said:  ‘His hunger was never satiated. Whatever I cooked, he would finish half the food and the rest of the food was eaten by five of us’

Abrar will undergo a laparoscopic sleeve surgery in which the outer margin of the stomach is removed to restrict food intake on Friday

Abrar will undergo a laparoscopic sleeve surgery in which the outer margin of the stomach is removed to restrict food intake on Friday

‘I am happy that finally Abrar will get the operation he needs to help him live a normal life.

‘We understand that he has a disease of eating too much food and he needs to be treated differently.

‘I am sure he will lose weight just like Dr Maaz’s other patients. I am hopeful that with proper diet and exercises and activities like swimming and sports, he will one day be a normal weight.’

Dr Maaz said: ‘When he came to us he could not even take three steps at a time.

‘He is an obese child although there is no history of obesity in his family. His parents and the two siblings are perfectly normal.

‘He has an endless appetite and his parents said he ate a lot for his age.’

Abrar will undergo a laparoscopic sleeve surgery in which the outer margin of the stomach is removed to restrict food intake on Friday.

The surgery is expected to last for an hour, and after the operation, Mohammed will be fed a liquid diet of buttermilk, chicken broth, and fruit juice.