BILLY Connolly has undergone surgery for prostate cancer.

The Scottish star recently had the procedure in America, his spokesperson has announced. The 70-year-old comedian is recovering well from the operation, although he has also been diagnosed with Parkinson's disease.

"Billy Connolly recently underwent minor surgery in America after being diagnosed with the very early stages of prostate cancer. The operation was a total success, and Billy is fully recovered," the statement read.

"In addition, Billy has been assessed as having the initial symptoms of Parkinson's disease, for which he is receiving the appropriate treatment."

Billy recently appeared in the movie Quartet, alongside Dame Maggie Smith, and will feature in the upcoming two Hobbit movies.

His representative has insisted his diagnosis will not have any effect on his career plans.

"Billy has been assured by experts that the findings will in no way inhibit or affect his ability to work, and he will start filming a TV series in the near future, as well as undertaking an extensive theatrical tour of New Zealand in the new year," the statement continued.