How do you catherize 11 yr boy with long perpuce?

To catheterize an 11-year-old boy with a long prepuce, first, ensure you have consent and are in a sterile environment. Gently retract the foreskin to expose the urethral opening, taking care to avoid forceful manipulation to prevent injury. Lubricate the catheter and insert it into the urethra while maintaining a steady hand. If you encounter resistance, stop and reassess; it may be necessary to consult a healthcare professional for assistance.