You're doing the right thing by asking. Taking care of your penis is mostly about regular, simple hygiene, safe practices, and knowing when to see a doctor. Below is a clear, step-by-step guide made for someone your age.

Daily hygiene (simple routine)

• Wash once a day during a shower with warm water and a mild, unscented soap. You don't need harsh soaps or scrubs.
• If you're uncircumcised and the foreskin easily pulls back, gently retract it in the shower, rinse the head (glans) and inner foreskin with water, then pull the foreskin back over the head. Do not force it if it doesn’t retract — forcing can cause pain or injury.
• If you're circumcised, wash the head and shaft gently with water and mild soap.
• After washing, dry the area thoroughly but gently. Moisture left trapped can cause irritation or smell.
• Change underwear daily and choose breathable fabrics (cotton or moisture-wicking blends). Change immediately after heavy sweating or sports.

After sex or masturbation

• Wash with water and mild soap when you can. This helps prevent irritation and lowers infection risk.
• For masturbation, wash your hands before and after. If you use lubricants or toys, clean them according to the manufacturer’s instructions and don’t share them without proper cleaning.

Foreskin specifics (important if you're uncircumcised)

• Only retract the foreskin if it moves easily and without pain. If it’s tight or painful, don’t force it — see a doctor.
• White, cheesy buildup under the foreskin (smegma) is normal if you don’t clean regularly; gentle washing removes it.

Safe sex basics

• Condoms protect against most sexually transmitted infections (STIs) and pregnancy. Use one every time you have sex. Check the expiry date and store condoms away from heat.
• Use water-based or silicone-based lubricants with latex condoms. Avoid oil-based lubricants (like petroleum jelly or baby oil) with latex condoms because they can cause breakage.
• Get regular sexual-health checkups if you are sexually active. Many clinics offer confidential testing and advice for teens.
• HPV vaccination is recommended for teens and young adults — ask your doctor or clinic if you haven’t had it.

Masturbation and avoiding injury

• Masturbation is a normal part of puberty. Keep it clean: wash hands, avoid very rough or painful techniques, and don’t insert objects into the urethra or body cavities.
• Avoid prolonged suction devices or extreme techniques that can damage tissue.

Shaving and piercings

• If you shave pubic hair, use a clean razor, shave carefully to avoid cuts, and use aftercare to prevent ingrown hairs or infection.
• Genital piercings carry infection risks. If you consider one, go to a reputable piercer and follow strict aftercare instructions.

When to see a doctor (get checked sooner rather than later)

Contact a doctor or clinic if you have any of the following:

• Pain, swelling, or a lump on the penis or in the testicles
• Unusual discharge from the penis or ongoing bleeding
• Pain or burning when you pee
• Sores, blisters, or persistent red patches on the penis
• Foreskin that is stuck and won’t move, especially if it’s painful
• Fever or feeling very unwell with genital symptoms

Privacy and getting help

• Many sexual-health clinics, school nurses, and doctors provide confidential care for teens. Laws vary by place, but you often can get testing and treatment without parental permission. If you’re unsure, ask a trusted healthcare provider or a school health counselor.
• Reliable resources: Planned Parenthood (US), NHS (UK), or your local public health clinic. They offer non-judgmental information and services for teens.

Final reassurance: most issues are simple to prevent or treat if you keep good hygiene and seek help early. If something worries you or you notice signs listed above, see a doctor — you don’t have to wait or deal with it alone.