Timothy G. Pryer, Mississippi prisoner # 115393, appeals the district court’s dismissal of his 42 U.S.C. § 1983 complaint as frivolous under 28 U.S.C. § 1915(e)(2)(B)© and for failure to state a claim. Because the district court dismissed Pryer’s claims as both frivolous and for failure to state a claim, review is de novo. See Geiger v. Jowers, 404 F.3d 371, 373 (5th Cir. 2005).

Pryer’s claim of deliberate indifference to his medical needs was properly dismissed. Claims of unsuccessful medical treatment are insufficient to give rise to a claim of deliberate indifference. Varnado v. Lynaugh, 920 F.2d 320, 321 (5th Cir. 1991). Moreover, the question whether certain diagnostic studies or forms of treatment are indicated is a “classic example of a matter for medical judgment.” Estelle v. Gamble, 429 U.S. 97, 107, 97 S.Ct. 285, 50 L.Ed.2d 251 (1976). Although a medical decision not to order certain testing or alter a treatment regime may form the basis of a state medical *418 malpractice claim, the decision does not represent cruel and unusual punishment.” Id.

Pryer’s claim of sexual abuse was properly dismissed because, even if it is assumed that a female prison guard rubbed his chest and made comments about his hair and chest during the performance of his electrocardiogram, Pryer has not alleged sufficiently serious assaultive behavior or resulting injury to show a constitutional deprivation. See Boddie v. Schnieder, 105 F.3d 857, 860-61 (2d Cir. 1997). Isolated, unwanted touchings by prison employees are despicable and may form the basis of a state tort action, but they “do not involve a harm of federal constitutional proportions as defined by the Supreme Court.” Id.

Pryer’s claim of retaliation was properly dismissed because he has not stated a valid claim for retaliation under § 1983 against any defendant. See Jones v. Greninger, 188 F.3d 322, 324-25 (5th Cir. 1999); Woods v. Smith, 60 F.3d 1161, 1166 (5th Cir. 1995); Ruiz v. United States, 160 F.3d 273, 275 (5th Cir. 1998).

The district court’s judgment is AFFIRMED.