Male Sexual Development and Semen Concerns for Teenagers - Urology

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1.
I am currently 17 years old and in my senior year of high school.
My erect penis measures 17 cm in length and 4 cm in girth.
Is this normal? Will it continue to develop? Because when not erect, I have phimosis, which makes it look less impressive.

2.
What special precautions should high school students take when engaging in sexual activity with females?
3.
Is it reasonable to masturbate three times a week?
4.
My semen volume has decreased recently; what could be the possible reasons?
5.
My semen is somewhat off-white in color; is this normal?

Avenue, 10~19 year old female. Ask Date: 2022/07/24

Dr. Li Xinyi reply Urology


It doesn't seem like there is a problem with any disease.

Reply Date: 2022/07/24

More Info


Understanding male sexual development during adolescence is a crucial topic, especially for teenagers who may have concerns about their bodies and sexual health. Let's break down your questions one by one.

1. Penis Size and Development: At 17 years old, a penis size of 17 cm when erect and 4 cm in circumference is considered within the normal range. Penis size can vary significantly among individuals, and it’s important to remember that size does not determine masculinity or sexual prowess. The penis continues to develop during puberty, which can last until the late teens or early twenties. If you are experiencing concerns about being uncircumcised (phimosis), it’s advisable to consult a healthcare professional for guidance.

2. Engaging in Sexual Activity: If you are considering engaging in sexual activity with a female partner, it is essential to prioritize consent, communication, and safety. Discuss boundaries and preferences with your partner openly. Additionally, using protection, such as condoms, is crucial to prevent sexually transmitted infections (STIs) and unintended pregnancies. Understanding the emotional aspects of sexual relationships is equally important, as they can significantly impact both partners.

3. Masturbation Frequency: Masturbating three times a week is generally considered a normal frequency for most teenagers. Masturbation is a natural and healthy way to explore your body, understand your sexual preferences, and relieve sexual tension. It is important to ensure that it does not interfere with your daily life, responsibilities, or relationships.

4. Changes in Semen Volume: A decrease in semen volume can be attributed to several factors, including hydration levels, frequency of ejaculation, and overall health. If you are dehydrated, your body may produce less semen. Additionally, frequent ejaculation can temporarily reduce the volume of semen produced. If you notice a persistent decrease in semen volume or have other concerns, it would be wise to consult a healthcare provider to rule out any underlying issues.

5. Semen Color: The typical color of semen is a milky white or slightly yellowish hue, which is considered normal. Variations in color can occur due to diet, hydration, or other factors. If you notice any significant changes in color, consistency, or if you experience discomfort, it is advisable to seek medical advice.

In summary, adolescence is a time of significant physical and emotional changes. It is perfectly normal to have questions and concerns about your body and sexual health. Open communication with trusted adults, healthcare providers, or sexual health educators can provide you with the information and reassurance you need. Remember, every individual develops at their own pace, and what is most important is to prioritize your health and well-being. If you have any ongoing concerns, do not hesitate to reach out to a healthcare professional who can provide personalized advice and support.

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