Speaking on Talk Sport Breakfast, external, he described how the condition had affected him for a number of years.
McCoist said: “I have got Dupuytren’s. It’s a hereditary thing where your fingers close in.”
He said having the condition meant it could sometimes take him up to five minutes to send a text message on his phone as he had to use one finger.
The condition affects the skin and muscle in the palm of the hand, causing it to thicken and become less flexible.
Over time this can cause the fingers to bend towards the palm. The condition can be painful and there is no cure.
Treatment, such as surgery, can help straighten the fingers but it will not get rid of the condition.
McCoist said he had undergone two operations to attempt to straighten his fingers but the condition returned.
He said: “The bizarre thing with Dupuytren’s is when I went to see the doctor he said ‘I will operate on it but it will come back in roughly nine years’.
“And I swear to God, nine years later it came back.”
