A devastated mother has revealed she struggled to look at toddler son after he was mauled by her parents' pet dog, leaving him with horrific wounds across his face.

On May 12 this year, insurance coordinator Sarah Fuller, 28, from Portland, Oregon, was at work whilst her parents were looking after her three-year-old son.

Around lunchtime that day, Sarah received a devastating phone call from her mother telling her that her adorable little boy, Micajah, had been attacked by the family pit bull, Bobo.

Mother's worst nightmare: 28-year-old mother Sarah Fuller from Portland, Oregon received a call on 12 May from her mother who said the family's Pitbull had attacked her 3-year-old boy

Devastating: Sarah's son Micajah (left) was mauled by the family's pit bull, Bobo (right), when he was being babysat by Sarah's parents while she was at work

Heartbreaking: Micajah, who was just two and a half at the time of the accident, was taken to the hospital immediately after the accident that happened around lunchtime

After receiving the call, Sarah left work and drove frantically to the hospital where her parents had taken Micajah.

She said: 'My son wasn’t in full time day care at the time, so I was having him watched by my family. I was actually at work at the time when I got the horrific call from my mum.

'It was about half one on 12 May when he was attacked by the family dog we had for nine years,' she added.

When she arrived at the hospital, a nurse warned her that she couldn't go into the room until he had been bandaged up as his injuries were so shocking.

At first, Sarah found it extremely difficult to look at her son without breaking down into tears.

Pre-accident: Micajah pictured looking happy and full of life before his accident

Best pals: Sarah and Micajah pictured together before the toddler's accident

Injuries: Micajah suffered various injuries as a result of the attack, including punctured cheeks, stretched facial nerves, and torn gums. The toddler also lost his front tooth in the incident

'It was very hard to look at my son after this happened because I just wanted to cry, I felt so hopeless and sad for my son. I held a very positive attitude and knew that it could have been worse, and I’m just blessed he was alive,' she said.

Sarah's parents had owned the dog for nine years.

The three-year-old toddler had to undergo facial reconstruction surgery as a result of the punctures from the bite going through his cheek. This stretched the nerves in his face, teared back his gums and pulled out his front tooth.

He also underwent gum grafting and will have to undergo further facial surgery once he has finished growing.

In order to help cover the costs of the surgery, Sarah has set up a Go Fund Me page.

Understandably, the attack caused tension within Sarah’s family but her parents took full responsibility for Bobo’s actions and Sarah would never sue her parents as they mean the world to her.

Motherly-love: Sarah and Micajah pictured together after the accident. Doctor's told Sarah that when he is fully grown, her son will need to get further reconstruction on his face

Recovery: Doctors told Sarah that her son would need to get facial reconstruction surgery as a result of the punctures from the bite going through his cheek

Warning: Sarah stressed the importance of keeping dogs away from children regardless of owners believing their dog is harmless

She said: 'There was a lot of emotions and I was forced to put him in school full time. Because I refused to send him back over there.

Traumatized: Since the attack, Micajah has been terrified of dogs. His doctor recommended that he gets a puppy to overcome his fear

'My parents took all liability for the dog attack but since it’s my parents, I did not sue them. My family means a lot to me and all I have is my parents,' Sarah explained.

The attack has left Micajah terrified of dogs, regardless of size and for the first month after his ordeal, he had nightmares each night.

Bobo never once showed signs of aggression before this freak incident and Sarah stressed the importance of keeping dogs away from children regardless of their seemingly good temperament.

She said: 'He is terrified of all dogs big or small. He was full of anger and sadness the first month after the attack and every night he would wake up from nightmares screaming.

'His doctor recommended that we get him a puppy so he can grow up not scared of all dogs.

'Every time I had to take him out in public and someone looked at him, Micajah felt the need to tell everyone that Bobo did this to him.

Sarah added: 'Keep all dogs away from kids even if you feel they won’t hurt them, dogs are naturally wild and we had no signs of our family dog being aggressive.'