Male Genital Development and Semen Color Variations - Urology

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Color of Genital Organs and Semen


In my childhood, I experienced testicular pain due to an impact, but it subsided after a while, so I did not seek further examination at that time.
During my junior high and high school years, I masturbated about 2 to 3 times a week, and I'm not sure if that was excessive.
Now, it seems that my penis and testicles have not fully matured.
I'm unsure if this is a psychological effect or due to other reasons.
When erect, the measurement from the base to the tip of my penis is 12.5 cm, with a width of 2.5 cm.
I have a triangular patch of pubic hair, armpit hair, and an Adam's apple, but there is no hair in the genital area between my pubic hair and my navel.
Both of my testicles are approximately 4.5 cm in size.
It seems that males my age have matured earlier, but I appear to be different.
I would like to know if my genital development is considered normal or if I am just developing more slowly.
Additionally, recently, after a week of abstaining, the semen I produced was mostly clear with a slight yellow tint, rather than the typical milky white color that others describe.
Is it normal for semen to lack the milky white appearance? Thank you, doctor.

Niming, 20~29 year old female. Ask Date: 2020/02/14

Dr. Du Shixi reply Urology


Hello: 1) Your descriptions are within the normal range.
Based on personal experience, development should be complete by age 22.
If there are any concerns, feel free to ask again.
2) The color and volume of semen can vary; some may have a yellow tint, while others may have a lower volume, which is not a concern.
The important factor is the quality of the sperm, so a semen analysis should be conducted at a urology clinic.
Wishing you good health.

Reply Date: 2020/02/14

More Info


Understanding male genital development and variations in semen color can be complex, as many factors contribute to these aspects of male health. Based on your description, it seems you have concerns about your genital development and the characteristics of your semen. Let’s break down these issues.


Male Genital Development
Male genital development occurs in stages, typically beginning in utero and continuing through puberty. By the time a male reaches his late teens, most of the physical changes associated with puberty should be complete. However, it is not uncommon for some individuals to experience variations in the timing and extent of these changes.

From your description, it appears that your penis size (12.5 cm in length and 2.5 cm in width when erect) is within the range of normal, although it may be on the smaller side compared to some peers. The average erect penis size is often cited as being around 12.9 to 15 cm. However, it’s important to remember that size can vary significantly among individuals, and factors such as genetics and hormonal levels play a crucial role.

The presence of pubic hair, armpit hair, and a pronounced Adam's apple indicates that you are undergoing some secondary sexual characteristics, which is a positive sign of testosterone activity. The absence of hair in the area between the navel and the genitals is not uncommon and can vary widely among individuals.


Concerns About Development
You mentioned that you feel your genitalia may not be fully developed compared to your peers. This could be due to a variety of reasons, including genetic factors, hormonal levels, or even psychological factors. If you are concerned about delayed development, it may be beneficial to consult with a healthcare provider, such as an endocrinologist, who specializes in hormonal health. They can perform tests to assess your testosterone levels and other relevant hormones, which can provide insight into your development.


Semen Color Variations
Regarding the color of your semen, it is normal for semen to vary in color and consistency. Healthy semen can range from a translucent to a milky white appearance. The presence of a yellowish tint can sometimes be attributed to various factors, including diet, hydration levels, and frequency of ejaculation. If you are experiencing a transparent or yellowish color consistently, it may not necessarily indicate a problem, especially if there are no accompanying symptoms such as pain, discomfort, or changes in urination.

However, if you notice a persistent change in color, consistency, or if you experience any discomfort during ejaculation, it would be wise to seek medical advice. Conditions such as infections or hormonal imbalances can sometimes affect semen characteristics.


Conclusion and Recommendations
In summary, your concerns about genital development and semen color are valid, and it’s understandable to seek clarity on these issues. While some variations are normal, if you feel that your development is significantly delayed or if you have concerns about your semen characteristics, I recommend consulting a healthcare professional. They can provide a thorough evaluation, including hormonal assessments and possibly imaging studies if necessary.

It’s important to approach these topics without embarrassment, as they are common concerns among many individuals. Open communication with a healthcare provider can help alleviate your worries and provide you with the information you need to understand your body better. Remember, everyone develops at their own pace, and variations are a natural part of human biology.

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