Lorraine Kelly lost three pints of blood last month after a horse threw her to the ground and trod on her with an iron-clad hoof.
In her first interview since the accident, the ITV Breakfast presenter told her stand-in, Nadia Sawalha, that she had undergone a blood transfusion and is still taking strong painkillers.
The 52-year-old is out of hospital and is being looked after by her husband Steve at home in Scotland but she does not know when she will be able to return to work.
It was Lorraine's second ever riding lesson at Chessington Equestrian Centre in Surrey as part of preparations for an event run by Sarah Brown's charity PiggyBankKids.
She told Nadia she had tried a jump but was not experienced enough to get the horse to do it.
She said: "I fell off and, sadly, he trampled on my thigh. My leg was in a bit of a state. Imagine a big horse with an iron-clad hoof, it's almost like a weapon."
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