Grateful Dead bassist Phil Lesh battling bladder cancer

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Grateful Dead's Phil Lesh Cancels Concerts to Battle Bladder Cancer

SAN RAFAEL, Calif. (AP) — Grateful Dead bassist Phil Lesh says he has been diagnosed with bladder cancer and is being treated in Arizona.

The 75-year-old bassist announced his illness Friday on the Facebook page of his San Rafael restaurant and concert hall, Terrapin Crossroads.

Lesh says he was diagnosed in early October and has been undergoing tests at the Mayo Clinic in Scottsdale and will eventually have surgery to remove the tumors. He says he's "very fortunate" to have the pathology reports show the tumors are all non-aggressive and that there is no indication that they have spread.

He canceled Phil Lesh and Friends shows scheduled for Oct. 24 and 25 at the Terrapin Crossroads.

Lesh says he will be able to return to normal activities two weeks after surgery and will reschedule the canceled dates.

See the full Facebook announcement below:

A Message from Phil: Dear Friends,I am sorry to let you know that I will need to cancel the October 24th and 25th...

Posted by Terrapin Crossroads on Friday, October 16, 2015

Photos of the Grateful Dead from over the years:
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Grateful Dead bassist Phil Lesh battling bladder cancer
UNITED STATES - CIRCA 1965: Photo of Grateful Dead when they started playing as the Warlocks (Photo by Paul Ryan/Michael Ochs Archives/Getty Images)
UNITED STATES - CIRCA 1965: Photo of Grateful Dead when they started playing as the Warlocks (Photo by Paul Ryan/Michael Ochs Archives/Getty Images)
FILE - Members of the Grateful Dead face reporters in San Francisco Oct. 5, 1967, following a police raid on their residence resulting in marijuana possession charges. From left: Bill Kreutzmann, Phil Lesh, Managers Rock Scully and Dan Rifkin, Bob Weir, Jerry Garcia and attorney Michael Stepanion. Garcia died Wednesday, Aug. 9, 1995 of an apparent heart attack at the age of 53. (AP Photo/FILE/Sal Veder)
LOS ANGELES - SEPTEMBER 15: Jerry Garcia of The Grateful Dead rehearses at the Hollywood Bowl on September 15, 1967 in Los Angeles, California. (Photo by Michael Ochs Archives/Getty Images)
NEW YORK - JUNE 8: The Grateful Dead (L-R Bill Kreutzmann (drums), Phil Lesh and Bob Weir) perform at the Cafe Au Go Go on June 8, 1967 in New York City, New York. (Photo by Don Paulsen/Michael Ochs Archives/Getty Images)
SAN FRANCISCO - CIRCA 1968: Mickey Hart of the rock and roll band 'The Grateful Dead' poses for a portrait under graffiti that reads 'Acid' on Portrero Hill in circa 1968 in San Francisco, California. (Photo by Malcolm Lubliner/Michael Ochs Archives/Getty Images)
SAN FRANCISCO - CIRCA 1968: L-R: Bob Weir, Bill Kreutzmann, Jerry Garcia, Phil Lesh of the rock and roll group 'The Grateful Dead' pose for a portrait session on Portrero Hill in circa 1968 in San Francisco, California. (Photo by Malcolm Lubliner/Michael Ochs Archives/Getty Images)
Members of the Grateful Dead are pictured in this 1969 photo. After thirty years of making music, the Grateful Dead, once the house band of the 1960s counterculture, is breaking up. The move came four months after the death of its founder and guiding spirit, Jerry Garcia. From left in the back row are, Tom Constanten, Bob Weir, Bill Kreutzman, Ron "Pigpen" McKernan, and Phil Lesh. Jerry Garcia, left, and Mickey Hart, right, are in the front row. (AP Photo)
JUNE 20: Back cover of the rock and roll band 'Grateful Dead's' album Aoxomoxoa with a 5-year-old Courtney Love in the bottom right corner which was released June 20, 1969. Her father Hank Harrison was their manager. (Photo by Michael Ochs Archives/Getty Images)
UNSPECIFIED - circa 1970: (AUSTRALIA OUT) Photo of GRATEFUL DEAD (Photo by GAB Archive/Redferns)
UNSPECIFIED - CIRCA 1970: Photo of Grateful Dead (Photo by Larry Hulst/Michael Ochs Archives/Getty Images)
The Grateful Dead, Jerry Garcia, portrait, London, 4th April 1972. (Photo by Michael Putland/Getty Images)
A portrait of Bob Weir of The Grateful Dead at the Tivoli in April 1972 in Copenhagen, Denmark. (Photo by Gijsbert Hanekroot/Redferns)
Watkins Glen Rock Festival, Summer Jam at Watkins Glen, N.Y. with The Allman Brothers Band, Grateful Dead and The Band performing. 600,000 rock buffs streamed in for a one-day concert inside a race track. (Photo By: Richard Corkery/NY Daily News via Getty Images)
Watkins Glen Rock Festival, Summer Jam at Watkins Glen, N.Y. with The Allman Brothers Band, Grateful Dead and The Band performing. 600,000 rock buffs streamed in for a one-day concert inside a race track. (Photo By: Richard Corkery/NY Daily News via Getty Images)
Bob Weir (left) and Ron 'Pigpen' McKernan (1945-1973) of American rock band The Grateful Dead, 4th April 1972. (Photo by Michael Putland/Getty Images)
UNITED KINGDOM - SEPTEMBER 09: ALEXANDRA PALACE Photo of Jerry GARCIA and GRATEFUL DEAD, Jerry Garcia (Photo by Mick Gold/Redferns)
SAN FRANCISCO - SEPTEMBER 1975: Drummers Bill Kreutzmann and Mickey Hart perform with The Grateful Dead at a free concert in Golden Gate Park in September 1975 in San Francisco, California. (Photo by Ed Perlstein/Redferns/Getty Images)
SAN FRANCISCO, CA - SEPTEMBER 28, 1975: Singer Jerry Garcia performs with The Grateful Dead at Lindley Meadow in Golden Gate Park, San Francisco, California, September 28, 1975. (Photo by Alvan Meyerowitz/Michael Ochs Archives/Getty Images)
UNITED STATES - JANUARY 01: Photo of GRATEFUL DEAD and Jerry GARCIA (Photo by Richard E. Aaron/Redferns)
SAN FRANCISCO - JUNE 1976: The Grateful Dead (L to R: Phil Lesh, Mickey Hart, Bob Weir, Jerry Garcia) perform on New Years Eve 1977 at Winterland in San Francisco, California. (Photo by Ed Perlstein/Redferns/Getty Images)
OAKLAND - OCTOBER 9: Jerry Garcia and Bob Weir performing with 'the Grateful Dead' in Oakland Coliseum in Oakland, California on October 9, 1976. (Photo by Larry Hulst/Michael Ochs Archives/Getty Images)
More than 125,000 rock fans from down the road and across the nation jame Englishtown's Raceway in Old Bridge, N.J. for concert featuring the Grateful Dead. Beer, booze and joints were the order of the day for the mellow, jovial crowd. Early arrivals lined up outside crowded liquor stores, while scalpers hawked $10 tickets for $20. roads leading to the raceway were clogged for miles, a 15,000 car parking lot was filled four hours before the music started. the concert grounds were more mud than grass but Dead fans, who traveled from as far as New Mexico and California to hear their idol group, didn't seem to mind.(Photo By: Harry Hamburg/NY Daily News via Getty Images)
SAN FRANCISCO - DECEMBER 1977: The Grateful Dead perform on New Years Eve 1977 at Winterland in San Francisco, California. (Photo by Ed Perlstein/Redferns/Getty Images)
More than 125,000 rock fans from down the road and across the nation jame Englishtown's Raceway in Old Bridge, N.J. for concert featuring the Grateful Dead. Beer, booze and joints were the order of the day for the mellow, jovial crowd. Early arrivals lined up outside crowded liquor stores, while scalpers hawked $10 tickets for $20. roads leading to the raceway were clogged for miles, a 15,000 car parking lot was filled four hours before the music started. the concert grounds were more mud than grass but Dead fans, who traveled from as far as New Mexico and California to hear their idol group, didn't seem to mind. Crutches can't keep Dead fan down. (Photo By: James McGrath/NY Daily News via Getty Images)
More than 125,000 rock fans from down the road and across the nation jame Englishtown's Raceway in Old Bridge, N.J. for concert featuring the Grateful Dead. Beer, booze and joints were the order of the day for the mellow, jovial crowd. Early arrivals lined up outside crowded liquor stores, while scalpers hawked $10 tickets for $20. roads leading to the raceway were clogged for miles, a 15,000 car parking lot was filled four hours before the music started. the concert grounds were more mud than grass but Dead fans, who traveled from as far as New Mexico and California to hear their idol group, didn't seem to mind. Warmup group, New Riders of the Purple Sage does just that to mellow crowd. (Photo By: Keith Torrie/NY Daily News via Getty Images)
SATURDAY NIGHT LIVE -- Episode 5 -- Pictured: Musical guests The Grateful Dead: (l-r) Bob Weir, Donna Godchaux, Jerry Garcia perform on November 11, 1978 (Photo by Fred Hermansky/NBC/NBCU Photo Bank via Getty Images)
SANTA BARBARA, CA - JUNE 4: The Grateful Dead (L to R: Bob Weir, Donna Godchaux) perform at Santa Barbara Stadium on June 4, 1978 in Santa Barbara, California. (Photo by Ed Perlstein/Redferns/Getty Images)
The Grateful Dead perform at the Uptown Theater, Chicago, Illinois, January 31, 1978. (Photo by Kirk West/Getty Images)
OAKLAND, UNITED STATES - DECEMBER 31: The Grateful Dead celebrate New Year's Eve with a balloon drop at the Oakland Auditorium on December 31, 1979. (Photo by Clayton Call/Redferns)
Grateful Dead fans outside of Radio City Music Hall in New York City on September 21, 1980. (Photo by Ebet Roberts/Redferns)
Grateful Dead fans outside of Radio City Music Hall in New York City on September 21, 1980. (Photo by Ebet Roberts/Redferns)
BERKELEY, CA - SEPTEMBER 1981: The Grateful Dead perform at the Greek Theater in September 1981 in Berkeley, California. (Photo by Ed Perlstein/Redferns/Getty Images)
BERKELEY, UNITED STATES - SEPTEMBER 12: Mickey Hart performing with the Grateful Dead at the Greek Theater in Berkeley on September 12, 1981. (Photo by Clayton Call/Redferns)
PALO ALTO, CA - OCTOBER 1982: Bill Kreutzmann performs with The Grateful Dead at Frost Amphitheater in October 1982 in Palo Alto, California. (Photo by Ed Perlstein/Redferns/Getty Images)
9-1983; Bill Eveleigh from Ft. Collins Cheers as the Grateful Dead are introduced, Bill is wearing a Grateful Dead teeshirt a sign that is he is a true Dead Head; (Photo By Dave Buresh/The Denver Post via Getty Images)
BERKELEY, CA - AUGUST 14: Atmosphere as Grateful Dead perform at the Greek Theater on August 14, 1983 in Berkeley, California. (Photo by Tim Mosenfelder/Getty Images)
SAN FRANCISCO, UNITED STATES - DECEMBER 31: The Grateful Dead performing at the San Francisco Civic Center on December 31, 1984. (Photo by Clayton Call/Redferns)
BERKELEY, UNITED STATES - JUNE 15: The Grateful Dead performing at the Greek Theater in Berkeley, California on June 15, 1985. (Photo by Clayton Call/Redferns)
BERKELEY, CA - JULY 22: Jerry Garcia performing with 'The Grateful Dead' at the Greek Theatre in Berkeley, CA on July 22, 1986. (Photo by Larry Hulst/Michael Ochs Archives/Getty Images)
EAST TROY, WI - JUNE 26: Bob Weir (L) and Jerry Garcia of the Grateful Dead perform at Alpine Valley Amphitheatre on June 26, 1987 in East Troy, Wisconsin. (Photo by Tim Mosenfelder/Getty Images)
BERKELEY, CA - AUGUST 29: Jerry Garcia of The Grateful Dead performs at the Greek Theater on August 29, 1989 in Berkeley, California. (Photo by Tim Mosenfelder/Getty Images)
PALO ALTO, CA - MAY 2: Bob Weir of the Grateful Dead performs at Frost Amphitheater on May 2, 1989 in Palo Alto, California. (Photo by Tim Mosenfelder/Getty Images)
UNITED STATES - MARCH 07: Grateful Dead (Photo by The LIFE Picture Collection/Getty Images)
UNITED STATES - MARCH 07: Grateful Dead (Photo by The LIFE Picture Collection/Getty Images)
SACRAMENTO, CA - AUGUST 14: (EDITORS NOTE: Multiple exposure made in camera) Bob Weir of The Grateful Dead performs at Cal Expo Amphitheatre on August 14, 1991 in Sacramento, California. (Photo by Tim Mosenfelder/Getty Images)
SACRAMENTO, CA - MAY 21: Atmosphere as the Grateful Dead perform at Cal Expo Amphitheatre on May 21, 1992 in Mountain View, California. (Photo by Tim Mosenfelder/Getty Images)
Grateful Dead fan Shelly Morgan of Cupertino, Calif., dances to drum music during a memorial for Grateful Dead leader Jerry Garcia Wednesday, Aug. 9, 1995, in San Francisco's Golden Gate Park. Garcia died at a drug rehab clinic early Wednesday of a heart attack. (AP Photo/Steven Lewis)
Grateful Dead fans congregate on the corner of Haight and Ashbury Streets in San Francisco, Wednesday, Aug. 9, 1995 to eulogize and celebrate the life of guitarist Jerry Garcia, who died in a drug treatment center earlier in the day. (AP Photo/ Lacy Atkins)
Deadhead Luke (no last name) keeps vigil at the corner of Haight and Ashbury Streets in San Francisco, Wednesday, Aug. 9, 1995. He had traveled to the intersection, a landmark location symbolic of the 1960's counter-culture, to play his drums in tribute to Grateful Dead lead guitarist Jerry Garcia who died Wednesday of a heart attack. (AP Photo/Lacy Atkins)
233743 02: A small shrine for Jerry Garcia is on display in Central Park August 19, 1995 in New York City. Despite efforts by law enforcement to disperse mourners, hundreds of people attended an impromptu memorial service for Grateful Dead leader Garcia. (Photo by Evan Agostini/Liaison)
Tie-dye-clad hippie icon Hugh Wavy Gravy Romney leaning over to smell boquet of flowers during memorial service for Grateful Dead front-man Jerry Garcia at Golden Gate Park. (Photo by Kim Komenich/The LIFE Images Collection/Getty Images)
Crowd of Deadheads gathered w. arms up during memorial service for Grateful Dead front-man Jerry Garcia at Golden Gate Park. (Photo by Kim Komenich/The LIFE Images Collection/Getty Images)
233743 04: Two mourners sit beside a homemade sign in memory of Jerry Garcia in Central Park August 19, 1995 in New York City. Despite efforts by law enforcement to disperse mourners, hundreds of people attended an impromptu memorial service for Grateful Dead leader Garcia. (Photo by Evan Agostini/Liaison)
A restored 1959 VW bus dubbed the "Jerry Garcia Fan Bus" sits on the launch field at the Kodak Albuquerque International Balloon Fiesta as balloons are inflated and lift off behind it on Saturday, Oct. 4, 1997, in Albuquerque, N.M. The bus is on its last stop of a nine-city road trip and food drive to benefit local food banks. The bus was painted to replicate the late Grateful Dead guitarist's artwork. (AP Photo/Wachsman Associates,ho)
LOS ANGELES, UNITED STATES: Grateful Dead drummer Micky Hart rehearses for a performance at the Democratic National Convention in the Staples Center in Los Angeles, California, 17 August, 2000. AFP PHOTO/Paul J. RICHARDS (Photo credit should read PAUL J. RICHARDS/AFP/Getty Images)
Chas Martins of Effort, Pa., holds five-year-old Haily River of Fort Collins, Colo., on his shoulders as she blows bubbles as they wait for the start of the reunion concert of the Grateful Dead Saturday, Aug. 3, 2002, in East Troy, Wis. (AP Photo/Morry Gash)
NEW YORK - APRIL 26: Former Grateful Dead bassist Phil Lesh (R) performs with former Phish bassist Mike Gordon during the 5th Annual Jammy Awards at Madison Square Garden Theater April 26, 2005 in New York. The awards honor improvisational musicians. (Photo by Daniel Pierce Wright/Getty Images)
Bob Weir, center, of the Grateful Dead sings the national anthem alongside San Francisco Giants third base coach Tim Flannery, right ,and his brother Tom before a baseball game against the Milwaukee Brewers on Monday, Aug. 5, 2013, in San Francisco. (AP Photo/Marcio Jose Sanchez)
NEW YORK, NY - APRIL 23: Musician and founding member of the Grateful Dead, Bob Weir attends the screening of 'The Other One: The Long, Strange Trip of Bob Weir' during the 2014 Tribeca Film Festival at BMCC Tribeca PAC on April 23, 2014 in New York City. (Photo by Desiree Navarro/WireImage)
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