*691 MEMORANDUM **

Jesse Mann, a California state prisoner, appeals pro se from the district court’s summary judgment in his 42 U.S.C. § 1983 action alleging deliberate indifference to his medical needs. We have jurisdiction under 28 U.S.C. § 1291. We review de novo, Toguchi v. Chung, 391 F.3d 1051, 1056 (9th Cir. 2004), and we affirm.

The district court properly granted summary judgment because Mann failed to raise a genuine dispute of material fact as to whether defendants were deliberately indifferent to his back condition. See id. at 1057-58 (a prison official acts with deliberate indifference only if he or she knows of and disregards an excessive risk to the prisoner’s health and safety; negligence and a mere difference in medical opinion are insufficient); McGuckin v. Smith, 974 F.2d 1050, 1062 (9th Cir. 1992) (no deliberate indifference where plaintiff failed to raise a genuine dispute of material fact as to whether prison doctor defendants were responsible for delays in treatment and surgery), overruled on other grounds by WMX Techs., Inc. v. Miller, 104 F.3d 1133 (9th Cir. 1997) (en banc).

We do not consider Mann’s contentions raised for the first time on appeal. See Smith v. Marsh, 194 F.3d 1045, 1052 (9th Cir. 1999).

AFFIRMED.