Genital size is a crucial index for the assessment of male sexual development, as abnormal penile or testicular size may be the earliest visible clinical manifestation of some diseases. However, there is a lack of data regarding penile and testicular size measurements for Chinese boys at all stages of childhood and puberty. This cross-sectional study aimed to develop appropriate growth curves and charts for male external genitalia among children and adolescents aged 0—17 years in Chongqing, China. A total of boys were enrolled in the present study. Penile length was measured using a rigid ruler, penile diameter was measured using a pachymeter, and testicular volume was determined using a Prader orchidometer.
Dr. Greene's Answer
Adolescence is a time for growth spurts and other changes spurred by the onset of puberty. For boys faced with these changes, it can be a time of great uncertainty as some will inevitably fall behind others in their development. Among the key changes in the sexual maturation , boys will undergo as the testicles get larger and the scrotum begins to thin and redden. In tandem with these changes is the growth of the penis which can develop at different rates for different boys. As sexual awareness increases, concerns about penis size may deepen, particularly if all other signs of puberty including height, body hair, and changes in voice are robust. Knowing what to expect—and what an "average" penis size really means—can help alleviate a lot of the stress. The good news is that penis size is rarely a sign of a medical problem. With that being said, there are few answers about "normal" penis size that will satisfy an emotionally impatient teen. Between the ages of 10 and 14, when most of the growth spurts occur, boys will often feel the need to "size up" with their peers, believing themselves to fall short if they are anything less than average. Even in boys as young as 11, the visible changes seen in others can quickly turn from a source of curiosity to one of anxiety.
Knowing When or When Not to Be Concerned
Penis growth is influenced by the hormones of puberty. As such, the penis begins to grow more rapidly than usual between ages 10 and 14 and can continue to grow until ages 16 to In addition to other physical changes experienced during puberty, such as becoming more muscular and getting taller, this is the time when your penis may become erect in response to becoming sexually aroused, during sleep, or even at unpredictable times. Your testicles begin to grow larger and pubic hair begins to emerge. The most rapid growth occurs between the ages of 12 and The penis grows in length first and then begins to grow in girth width. The changes in your penis size can be sudden and fast. You may notice that your body, including your penis, goes through rapid changes for a few weeks, and then remains the same for months before changes begin again. In general, your penis may continue to grow for one or two years after you stop growing in height, or four to six years after your testicles enlarge. You will reach your fully developed penis size between the ages of 18 and
Greene, my month-old son has a recessed penis. Ever since we had him circumcised, the penis has recessed into a pad of fat surrounding it. In order for it to emerge, we have to push on either side of the pad. Our pediatrician assured us that as he thinned out, it would emerge on its own.