There is no scientific evidence of an increase in cases of the condition, which, although it exists, is rare. Misinformation on social media has indiscriminately promoted risky hormone treatments.
“Mothers and fathers of boys, have you ever measured the size of your son’s penis? I didn’t know the importance of this either, but we are having a generation of boys with micropenis.”
It is with these phrases that an influencer, who talks about motherhood, starts a video on TikTok. Then, he explains how to supposedly measure the genital organ and publishes a table with penis sizes considered normal for each stage of boys’ lives.
Videos like this have been gaining attention in recent months and are multiplying on social media. The publications, often with an alarmist tone, suggest that a “micropenis epidemic” is being experienced and advocate early interventions, such as the use of testosteroneas a solution to the problem.
According to experts, there is no scientific evidence of an increase in cases of the condition, which, although it exists, is considered rare. The estimated prevalence of this malformation is around 0.06% of boyswhich is a far cry from any scenario that could be described as an “epidemic”.
Micropenis is a medical condition defined by strict technical criteria, which take into account the child’s age and standardized measurements carried out by healthcare professionals. The diagnostic criterion corresponds to a penis with length less than 2.5 standard deviations from the mean for the age and ethnicity of the population.
This is not a subjective or just visual assessment. Children’s genital development presents natural variations, and many cases that cause concern among parents are, in reality, within normal limits.
Factors such as the accumulation of fat in the pubic region or individual differences in growth and development can influence perception size without indicating any health problem.
One of the main warnings from medical entities is the practice, encouraged by these viral videos, of parents measuring their children’s penises at home with a measuring tape or ruler. It is considered an inappropriate approach, since correct measurement requires specific technique and interpretation based on clinical tables. When done incorrectly, it can lead to wrong conclusions.
Furthermore, there is a ethical and psychological concern: exposing the child to this type of assessment without clinical need can cause embarrassment.
“It is important to know that the penis is formed at the base of the pubic bone and there is no point in measuring just what you see. There are penises that are partially hidden under the fat and have a ventral band. If the child has already undergone phimosis surgery, the penis may have become trapped in a scar — these are called embedded penis. Most people are unaware of these normal anatomical variations and what they see does not correspond to the actual size. Therefore, an incorrect measurement can generate anxiety”, explains Veridiana Andrioli, coordinator of the Department of Pediatric Urology at SBU, to DW.
Another central element of the misinformation circulating on social media is the idea that there is a “window of opportunity” limited between 6 and 11 years for hormonal treatment with testosterone and that, if not used, the boy will have irreversible consequences in adult life. Medical societies dispute this narrative and explain that, although hormonal treatment is indicated in some situations, it should only be carried out after a medical diagnosis.
Penis growth is not continuous and occurs at specific stages of life. This development takes place in the intrauterine period, between the third and sixth months of pregnancy, in a phase known as “minipuberty”, in which there is natural hormonal stimulation of the body, and then from the age of 12 or 13, when the boy enters puberty.
Hormone use requires monitoring
Testosterone is only indicated to treat micropenis in children when the diagnosis is confirmed or hormonal deficiency is proven, after individual medical evaluation. Hormone therapy is safe, but only when there is evidence of deficiency.
The indiscriminate use of testosterone, without adequate evaluation, can bring risks for boys’ health. These include permanent hormonal changes, impact on growth, risk of infertility in adulthood and even behavioral effects.. Therefore, experts say that there is no justification for starting treatment on your own initiative or based on information from social networks.
Misinformation gave rise to study
The spread of misinformation about a “micropenis epidemic” has reached doctors’ offices, according to Andrioli. In recent months, the number of parents asking to measure their children’s genitals during consultations has increased, suspecting that it is lower than the “ideal” for their age — a situation that led to a study being carried out.
The research assessed how the parents of 99 boys perceive the size of their children’s sexual organs. Although 48% of participants considered the size to be within normal limits, around 24% believed it was below average.
The experts found that, in general, the measurements taken by the caregivers were not correct and that penile length was underestimated by 2.5 to 3 centimeters compared to the real value.
Another piece of data from the study indicates that the greater the child’s weight, age and abdominal circumference, the greater the tendency for parents to evaluate the penis as being smaller than it really is.
“It is preferable not to measure, especially in these matters of anatomical variations, to avoid anxiety or wrong diagnoses. In case of doubt, you should consult a professional”, says Andrioli.
Among all the children examined, none had a micropenis.
The perception of men and women
A study published in the journal PLOS Biology has provided new evidence about how penis size influences social and sexual perceptions. According to the investigation, the men tend to interpret this characteristic as a sign of physical and sexual dominanceusing it as a reference when evaluating potential rivals. Among women, the factor also influences attractiveness, but with less weight compared to other physical attributes.
The study used 3D male models that varied in height, body shape and genital size. The results indicated that the Women consider taller men, with a “V” shaped body and a larger penis, more attractive. However, this effect has a limitsince increases beyond a certain point do not produce significant gains in the perception of attractiveness.
Among men, the response was different. Individuals with larger penises were rated as more threateningboth from a physical and sexual point of view, without a clear limit to this perception. This suggests that men attribute greater importance to this factor, associating it not only with attractiveness, but also with competitiveness.
The researchers also point to a possible evolutionary explanation for the phenomenon. In ancient periods, when the human body was not covered by clothing, the genital organ could function as a visible signal associated with sexual selection and social relations, influencing both the choice of partners and the evaluation between individuals of the same sex.
