What to do if I'm 15 years old and worried about my 11 cm erect penis size?

Penis size can vary considerably among individuals, and at 15 years old, you’re generally still in the phase of physical development. An erect penis size of 11 cm is actually within the range of normal size for adolescents who are still growing. It’s important to realize that puberty affects everyone differently; some develop early, others a bit later. It’s normal for the penis to continue to grow and develop throughout puberty, which can extend into the late teens, or even up to the early twenties. If you have noticed changes in your body over the past year, it could simply be part of your natural development process. Nonetheless, if your concerns about your body are causing you distress or impacting your mental wellbeing, it can be helpful to talk to a healthcare provider—even just to reassure yourself that everything’s progressing normally. They can assess whether your development falls within the typical range for your age. Keep in mind diet and overall health can also play a role in your body’s growth and development. Maintaining a balanced diet, adequate sleep, regular exercise, and avoiding harmful substances like tobacco or alcohol can support healthy development. If, down the line, you observe any unusual changes—like persistent pain, lumps, or if your growth seems to have stagnated—it might be worth scheduling a consultation with a doctor for further evaluation. However, there generally would be no cause for concern based on the size you mentioned, especially at your age. Focus on your overall health and well-being, it more important then fixating on size alone.