What are the standards for male reproductive organs?

The structure and function of male reproductive organs are the basic theoretical knowledge of sexual medicine, among which the important content is the normal standard of male reproductive organs, including internal and external reproductive organs and accessory glands. Closely related to clinical practice is the normal standard of testicles and penis. What are the standards of male reproductive organs? Let's take a look below.

The measurement method is mainly the measurement of testicles and penis. ① Testicle measurement. Only observe its volume, use the universal testicle volume measuring tool model (serial number is 30 ml, 25 ml, 20 ml, 15 ml, 12 ml, 10 ml, 8 ml, 6 ml, 5 ml, 4 ml, 3 ml, 2 ml, 1 ml) as the reference standard, and compare it with the human testicle (rub the testicle in the scrotum with both hands, and the upper and lower boundaries of the visible body surface are used as the limit to obtain the corresponding testicle volume), and measure the normal testicle volume standard. ② Penis detection. Including length, cross diameter, circumference, etc., using a domestic standard soft ruler and a 0.5 mm vernier caliper. Generally, the length of the penis in normal state (non-erection state), stretched state and erect state is measured. The surface boundary of the length is from the external urethral opening to the surface of the pubic symphysis, so that the penis is at a 90° angle to the upright body, and the horizontal distance is measured. The penis circumference includes the circumference of the crown of the penis head, the circumference of the middle section and the circumference of the root. The transverse diameter of the penis is the transverse diameter of the middle part of the penis.

2. Testing conditions The test subject must be a young man aged 18 to 30 years old, with normal development, good health, and no injuries or diseases. The test is carried out in an environment with a suitable room temperature (about 20℃). China is a multi-ethnic and vast country, and its standards are not uniform, so the standards of different regions and different ethnic groups should be tested.

The so-called extension is to pinch the coronal groove of the head with the thumb and index finger, pull it to fully stretch it, and then use a hard ruler to press the pubic symphysis at the base with a little force, and measure to the external opening of the head urethra. Most scholars believe that too small means that the shape and urethral opening are normal, but the penis is too short compared with people of the same age. Although there is no exact answer to this question, there are still approximate standards.