There are several things you can do to help make your penis strong. Here are some tips and suggestions from the search results:

1. Exercise regularly: Regular exercise, especially moderate aerobic physical activity, improves blood pressure, blood flow, and hormone levels, and raises chemicals like nitric oxide that increase penile blood flow. Physical activity can also boost stamina, strength, and flexibility. Kegel exercises may help strengthen specific pelvic muscles which are active when you get an erection.

2. Eat a healthy diet: A nutritious, balanced diet that includes fruits, vegetables, whole grains, and legumes can help improve blood flow throughout your body, including your penis. Foods high in antioxidants and anthocyanins, such as blueberries, can help protect body tissues and lower your risk of heart disease. A healthy diet also helps reduce the risk of type 2 diabetes, high blood pressure, high cholesterol, and obesity, all risk factors for erectile dysfunction (ED) .

3. Decrease fatty foods and alcohol: Eating a diet high in saturated fats and drinking too much alcohol can increase the risk of ED.

4. Try the Mediterranean diet: The Mediterranean diet, which includes fruits, whole grains, heart-healthy fats like nuts and olive oil, red wine, and vegetables, is a good place to start for better erectile function.

5. Manage and reduce stress: Stress can affect sexual function, so managing and reducing stress may help improve erections.

6. Experiment in the bedroom: Trying new positions and techniques can help improve sexual function and increase blood flow to the penis.

7. Seek medical treatment: If you have trouble getting or maintaining an erection, speak with a doctor. They can discuss possible causes, run tests, and prescribe medication if necessary.

Remember that making lifestyle changes and seeking medical treatment can help improve erectile function and overall sexual health.