How to correctly understand male physiological characteristics? Please keep this health knowledge handy.

(1) Of those who seek medical attention for micropenis, over 95% actually have penises that are slightly smaller than normal, falling within the normal range. This is mainly due to comparisons with others, leading them to believe their penis is smaller. They view others from the side, but view themselves from above, thus perceiving themselves as having a small penis. In reality, the development of different parts of the body is closely related to genetics, and there are significant differences between individuals, just as some are tall and some are short, some have large feet and some have small feet. One cannot universally apply the standard of "large," otherwise, one will feel small. In fact, regardless of foot size, as long as one can walk normally, it is considered normal. The same applies to the penis; regardless of size, as long as its function is normal, it cannot be considered truly micropenis.

(2) Some individuals make mistakes in their measurement methods, believing their penis is too small. The correct method for measuring the penis is to perform the measurement in a flaccid state, in a warm environment, and after a calm state of mind and adequate rest. Hold the penis flat with your hand, press one end of the measuring tape firmly against the front of the pubic bone, and read the number from the other end at the urethral opening of the glans penis. One author measured the lengths of 100 normal adult men, finding them to be between 6cm and 9.8cm. Some men are obese, so measuring only from the base of the penis results in a measurement equivalent to the subcutaneous fat layer; others are understood due to tension or in cold environments, causing the penis to be noticeably contracted, resulting in a smaller measurement.

(3) The length of the penis in the flaccid state is not directly proportional to the length of the penis in the erect state. That is, a larger flaccid penis increases less significantly upon erection, while a smaller flaccid penis increases more significantly upon erection. Therefore, the final lengths of both erect penises are essentially similar; a larger penis does not necessarily mean a greater increase in length upon erection. One group of penises, ranging from 7.5cm to 9cm in length, grew an average of 7.5cm to 8cm after erection, an increase of nearly 100%; another group of longer penises (10cm to 11.5cm) grew only 7cm to 7.5cm after erection, an increase of only 70%. Therefore, the difference in penis size is significant at rest, but decreases after erection. This suggests that men do not need to worry about the size of their penis.

(4) Some people believe that the larger the penis, the stronger the sexual function. In fact, as long as the penis size is within the normal physiological range and it can achieve an erection, normal sexual intercourse is possible. Furthermore, female sexual satisfaction is not related to penis size, but depends on a variety of factors such as emotions, partner, environment, and intensity of stimulation. This is because the female vagina is a highly elastic muscular canal. Normally, the anterior and posterior walls of the vagina are tightly pressed together. During intercourse, significant congestion and swelling occur, narrowing the vaginal opening and creating a "gripping" effect on the penis (regardless of size). Furthermore, the nerve endings in the vagina are mainly concentrated in the anterior third of the vaginal canal wall, while the inner two-thirds have almost no sensory nerve endings. Therefore, a longer penis does not produce more sexual stimulation than a shorter penis. As long as both partners have a harmonious relationship and good cooperation, their sex life can be satisfactory and harmonious.

(5) A common misconception is that the stronger and taller a man is, the larger his penis will be. Typical survey data can refute this fallacy. When the penis is flaccid, a man with a larger penis (14cm) is only 1.70m tall and weighs 69kg; while a man with a shorter penis (6cm) is 1.80m tall and weighs 80.8kg.

(6) Other factors causing micropenis should not be ignored. For example, some people's short penis appearance is due to concealed penis, meaning the skin of the glans penis is directly connected to the skin of the abdomen, burying the penile shaft in subcutaneous tissue, making the penis appear particularly short. In this case, plastic surgery can "release" the penis from the skin, restoring its normal length.

For those with true micropenis deformities, proper guidance and treatment are necessary. Micropenis is caused by a lack of androgens. Androgen deficiency can be congenital or acquired. Congenital deficiency occurs during the embryonic stage in the mother's womb. This type of deformity can usually be detected after birth, but because cell differentiation and development have already been affected, the deformity is generally irreversible.

For acquired micropenis, caused by chromosomal or endocrine system disorders that prevent the penis from growing to full size after puberty, early detection and treatment are crucial. Such patients are often not diagnosed during childhood because sexual development has not yet begun. It usually only becomes apparent when puberty begins and secondary sexual characteristics fail to appear. Treatment for this delayed or absent sexual development is most effective during puberty. However, if sexual development is only discovered around age 20 and treatment is requested, overall physical development has already matured, making penile growth more difficult. The appearance of secondary sexual characteristics is also an important indicator of whether micropenis is physiological or pathological. If secondary sexual characteristics develop well, the penis can achieve erections, and nocturnal emissions are frequent, then this micropenis is mostly physiologically normal to slightly smaller and not pathological. If the penis length is less than 5 cm and accompanied by underdeveloped secondary sexual characteristics, it is likely pathological and should be taken seriously, with prompt medical examination and diagnosis.