Joe Raymond Flores, Texas prisoner # 1069315, has filed a motion for leave to proceed in forma pauperis (IFP) on appeal from the district court’s dismissal of his 42 U.S.C. § 1983 complaint. The district court denied his IFP motion and certified that the appeal was not taken in good faith. By moving for IFP status, Flores is *663 challenging the district court’s certification. See Baugh v. Taylor, 117 F.3d 197, 202 (5th Cir. 1997).

Aside from conclusional allegations that he is challenging the district court’s determination that the appeal was not taken in good faith, that his § 1983 case has merit, and that prison employees were and continue to be deliberately indifferent to his serious medical condition, Flores does not address the district court’s reasons for its certification decision. Flores’s challenge to the district court’s certification decision is therefore abandoned. See Brinkmann v. Dallas County Deputy Sheriff Abner, 813 F.2d 744, 748 (5th Cir. 1987).

Flores has not shown that the district court’s certification was incorrect. The instant appeal is without arguable merit and is thus frivolous. Accordingly, Flores’s IFP motion is denied, and his appeal is dismissed as frivolous. See Howard v. King, 707 F.2d 215, 220 (5th Cir. 1983); 5th Cir. R. 42.2.

The district court’s dismissal of Flores’s complaint as frivolous and the dismissal of the instant appeal as frivolous count as strikes under 28 U.S.C. § 1915(g). See Adepegba v. Hammons, 103 F.3d 383, 387-88 (5th Cir. 1996). Flores is cautioned that if he accumulates three strikes under § 1915(g), he will not be able to proceed IFP in any civil action or appeal filed while he is incarcerated or detained in any facility unless he is under imminent danger of serious physical injury. See § 1915(g).

MOTION DENIED; APPEAL DISMISSED; SANCTION WARNING ISSUED.