Eponymous hard rock band Van Halen will be postponing their planned tour in Japan following the emergency surgery in the intestine of founder guitarist Eddie Van Halen.

According to reports, the legendary rock band released a statement on their website, saying, “Eddie Van Halen underwent an emergency surgery for a severe bout of diverticulitis. No further surgeries are needed and a full recovery is expected within 4-6 months.”

The statement added, “Van Halen’s scheduled November 2012 tour of Japan is currently being rescheduled and the band looks forward to seeing and playing for their fans in 2013.”

Diverticulitis is a condition in which pouches form in the wall of the colon, which can become inflamed or infected. It can be very painful.

This is the latest health issue for Eddie Van Halen, who underwent hip replacement surgery back in 1999. A year later, he was diagnosed with tongue cancer and had to have part of his tongue removed in surgery. In 2002, Eddie was declared cancer-free. In 2008, he had to postpone four concerts to undergo medical treatment.

The iconic band Van Halen reunited with its original frontman, David Lee Roth this year. However, they had already canceled US dates for the “A Different Kind of Truth” tour, giving no reason and fueling speculation about infighting.

Van Halen, which was formed in Los Angeles during the 1970s, is regarded as one of the most influential American rock bands of all time. Their eponymous 1978 debut album was a chart-topping success and generated 13 more studio albums. The band has sold more than 80 million albums worldwide.

Van Halen’s 1984 album entitled “1984,” was to be the band’s high point, giving them their only number one single “Jump.”

The creative tension within the band boiled over during the “1984″ tour, with the falling out of Eddie Van Halen and David Lee Roth. Roth left the band in April 1985.

They announced a reunion tour in 2007, with Roth performing with his former band for the first time in 22 years.

Van Halen released their first studio album in 14 years, “A Different Kind of Truth,” in February ahead of the world tour.