“Google CEO Larry Page has disclosed a problem with his vocal cords that makes it difficult for him to speak and breathe occasionally, but he says he remains fit enough to keep running the Internet’s most influential company,” Michael Liedtke reports for The Associated Press.

“The explanation that Page posted Tuesday on his Google Plus profile cleared up a mystery hanging over him since he lost his voice a year ago, causing him to miss Google Inc.’s annual shareholders meeting in June and a conference call to discuss the company’s quarterly earnings in July,” Liedtke reports. “Yet Page, the company’s co-founder and CEO for the past two years, conceded that all is not completely well with him. Page, who is 40, says his left vocal cord has been paralyzed since coming down with a severe cold 14 years ago, while Google was still in its formative stages. That issue was compounded last year with another cold that Page says impaired his right vocal cord, though it still has limited movement.”

Liedtke reports, “Page’s unavailability last year spooked investors, especially those who remembered Apple Inc.’s initial refusal to disclose the extent of co-founder Steve Jobs’ health problems. Jobs took two formal medical leaves as Apple’s CEO before resigning from the job about six weeks before his death from cancer. When Page had his health issue, Google had simply said Page was dealing with a throat problem that wouldn’t get in the way of his job.”

Read more in the full article here.

Via his Google+ page, here’s Larry Page’s full post, verbatim:

About 14 years ago, I got a bad cold, and my voice became hoarse. At the time I didn’t think much about it. But my voice never fully recovered. So I went to a doctor and was diagnosed with left vocal cord paralysis. This is a nerve problem that causes your left vocal cord to not move properly. Despite extensive examination, the doctors never identified a cause — though there was speculation of virus-based damage from my cold. It is quite common in cases like these that a definitive cause is not found.

While this condition never really affected me — other than having a slightly weaker voice than normal which some people think sounded a little funny — it naturally raised questions in my mind about my second vocal cord. But I was told that sequential paralysis of one vocal cord following another is extremely rare.

Fast forward to last summer, when the same pattern repeated itself — a cold followed by a hoarse voice. Once again things didn’t fully improve, so I went in for a check-up and was told that my second vocal cord now had limited movement as well. Again, after a thorough examination, the doctors weren’t able to identify a cause.

Thankfully, after some initial recovery I’m fully able to do all I need to at home and at work, though my voice is softer than before. And giving long monologues is more tedious for me and probably the audience. But overall over the last year there has been some improvement with people telling me they think I sound better. Vocal cord nerve issues can also affect your breathing, so my ability to exercise at peak aerobic capacity is somewhat reduced. That said, my friends still think I have way more stamina than them when we go kitesurfing! And Sergey says I’m probably a better CEO because I choose my words more carefully. So surprisingly, overall I am feeling very lucky.

Interestingly, while the nerves for your vocal cords take quite different routes through your body, they both pass your thyroid. So in searching for a cause for both nerves that was an obvious place to look. I was diagnosed with Hashimoto’s thyroiditis in 2003. This is a fairly common benign inflammatory condition of the thyroid which causes me no problems. It is unclear if this is a factor in the vocal cord condition, or whether both conditions were triggered by a virus.

In this journey I have learned a lot more about voice issues. Though my condition seems to be very rare, there are a significant number of people who develop issues with one vocal nerve. In seeing different specialists, I met one doctor — Dr. Steven Zeitels from the Harvard Medical School and the Massachusetts General Hospital Voice Center — who is really excited about the potential to improve vocal cord nerve function. So I’ve arranged to fund a significant research program through the Voice Health Institute, which he will lead. Thanks a bunch to my amazing wife Lucy, for her companionship through this journey and for helping oversee this project and get it off the ground. Also, thanks to the many people who have helped with advice and information many of whom I have not had a chance to thank yet.

Finally, we’ve put together a patient survey to gather information about other people with similar conditions. As it’s fairly rare, there’s little data available today — and the team hopes that with more information they can make faster progress. If you have similar symptoms you can fill it out here: voicehealth.org/ip