Ryan O’Neal has revealed he was diagnosed with stage four prostate cancer after he already survived one serious health scare, leukemia.

Ryan O’Neal, 70, also said his doctors have told him he has a good chance of making a full recovery.

The Love Story star said: “Recently I was diagnosed with stage 4 prostate cancer.

“Although I was shocked and stunned by the news, I feel fortunate that it was detected early and according to my extraordinary team of doctors the prognosis is positive for a full recovery.

“I am deeply grateful for the support of my friends and family during this time, and I urge everyone to get regular check-ups, as early detection is the best defense against this horrible disease that has afflicted so many.”

Ryan O'Neal has revealed he was diagnosed with stage four prostate cancer

Recommended treatment for localized stage four prostate cancer involves a combination of radiation therapy and hormone therapy.

The latter removes the male hormones necessary for prostate cancer to grow.

However, if it has spread to distant organs and bones it is treatable, but not curable with current standard therapies

Ryan O’Neal was treated in the late 1990s for myelogenous leukemia, which causes the bone marrow to produce too many white blood cells.

His latest diagnosis comes three years after he lost his longtime love Farrah Fawcett, who he had an on-off relationship with from 1979 until her death in 2009.

Farrah Fawcett died at age 62 of anal cancer.

Ryan O’Neal has written a memoir about his life with Farrah Fawcett called Both of Us coming out next month.

They had one child together, much troubled Redmond O’Neal, while he has three other children, including his actress daughter Tatum.

Ryan O’Neal recently starred in the flop reality show Ryan and Tatum: The O’Neals with his daughter, which aired on the little-watched OWN Network.