The hospital have offered £580 in compensation for the mix up

He thought he was being taken to assist in the birth of his baby

He was ushered to an operation theatre and told to drop his trousers

Doctors confused him with a man waiting for a haemorrhoid operation

A man waiting anxiously for the birth of his baby outside a hospital ward in China was ushered into theatre by doctors and given an operation on his haemorrhoids in a case of mistaken identity.

The expectant father, named Mr Wang in reports, was mixed up with another patient on Monday who had completed the paperwork for the procedure and was waiting to be operated on.

Doctors at the Shenyang Hunnan Xinqu Hospital in China asked Wang to accompany them. However, the father to be thought he would be taken to a room to aid in his wife's birth.

Take a seat, Mr Wang: The new father recovers from his operation in hospital

The confusion was further fuelled by the fact the hospital only has two operation rooms and Wang thought he was being taken to the room where his wife was in labour, according to the state run People's Daily.

In the theatre the man was asked to drop his trousers and lie on the operating table.

'It felt strange, and I asked why,' he told the news outlet. 'They said: "Just do what we tell you".'

With Wang on the table the doctors applied anaesthetic and proceeded to remove his haemorrhoids.

Mr Wang's wife later gave birth to a healthy baby via Caesarian section (stock image)

'I really never knew I had haemorrhoids,' the 29-year-old said.

'When I was on the operating table I heard a baby crying and I was very happy, and I wanted to hold it.

'But I couldn't move because I started to feel pain.'

It is unclear if the unsuspecting patient had a general or local anaesthetic.

Wang confirmed that his wife gave birth to a healthy baby via Caesarian section.