In this video Matt Cutts is asked if too many internal links with the same anchor text can hurt your search engine optimization. This has been a common question following the Google Penguin update, the reason being, with the new Google algorithm in place when you build too many external links with the exact same anchor text you lose your ranking. Clearly, the person asking this question is wondering if this same principal applies to internal links.
While Matt basically says not to worry about too many internal links with the same anchor text, he does state that there could be a rare chance when this would be an issue. Watch the video on this topic below.