Celine Dion, 55, cancels world tour as health worsens and leaves her unable to perform

CELINE Dion has canceled her world tour after her worsening health condition left her unable to perform.

The 55-year-old singer suffers from a neurological disorder called Stiff Person Syndrome.

Celine insists she's not giving up hope of returning to the stage once she's built back her strength.

For now, it means shows in France, Belgium, Denmark, Poland and the UK won't take place.

She said: 'It is with tremendous disappointment that we have to announce today the cancellation of the Courage World Tour.

'I'm so sorry to disappoint all of you once again. I'm working really hard to build back my strength, but touring can be very difficult even when you're 100%.

"It's not fair to you to keep postponing the shows, and even though it breaks my heart, it's best that we cancel everything now until I'm really ready to be back on stage again. 

"I want you all to know, I'm not giving up… and I can't wait to see you again!"

Stiff Person Syndrome is a condition which means a person's muscles tense uncontrollably.

There is currently no cure for the condition, which can leave sufferers as 'human statues', sometimes unable to walk or talk.

Celine revealed her heartbreaking diagnosis in December last year.

Only about one out of every one million people have been diagnosed this syndrome, according to the Cleveland Clinic.

Canadian superstar Celine told her fans she is trying to do what she can to minimise the symptoms.

In most cases, people with SPS respond to high doses of diazepam, which is often used as anti anxiety medication.

Pain relievers will also improve the symptoms but these will not cure the disorder.