Man must see: how to measure penis size

Penis is the male copulatory organs. From the corpus cavernosum of the penis and urethral sponge body, is rich in blood vessels, nerves, and lymphatic vessels. The Coronal Sulcus of the penis nerve is most abundant and the most sensitive. The Coronal Sulcus of the penis once we accepted sexual stimulation through the primary erects complete nerve reflex arc, penis free or not free to erectile dysfunction, and can last for quite a long time to complete sexual intercourse.

Ancient man's penis as a "God" symbol, think the penis is the propagation of the race's most important organ. The penis of the modern man "masculinity" symbol.

Man's penis and body height, fat, thin, many differences like size, facial features and so on, long and short, uneven thickness. Domestic Shi Chengli was measured in 1412 the health man penis size and length of 126 healthy male erectile. Results showed that the normal state of up to 14.5 cm, a minimum of 4 cm, average 8.375 cm; up to 12 cm in circumference, minimum 4.5 cm, average 8.3 cm. Erections for up to 16 cm, a minimum of 9 cm, average 12 cm; erection up to 14 cm in circumference, minimum 8 cm, average 10.75 cm. Liu Guozhen, survey of 1000 cases normal male penis length is: normal lengths range from 4.9-8.6 cm, average of 6.55 cm, up to 10.6 cm, a minimum of 3.7 cm.

Wu Weicheng on 2547 16-40 male penis measuring the length of an average of 7.43 cm, diameter averaged 8.17 cm; penis take average of 13.34 cm long, and calculated the length of erectile dysfunction similar to 13.08 centimeters is considering holding long representative after the erection length. Different authors there are certain differences of measurement results, the result is also affected by regional, national and other effects. In addition, the same person under normal penis length is variable, such as stress, cold or severe fatigue can cause penile shortening.

How to identify penis too small?

Before puberty the penis shorter than 2.5 cm shorter than 5 cm after puberty, and abnormal development, no erectile dysfunction; especially the poor development of secondary sexual characteristics, sexual dysfunction, no fertility, sperm, and shall not be considered to be abnormal development of the penis. Lead to a really small penis causes including:


(1) high lesion of primary testicular gonadotropin-gonadal dysfunction, hypothalamic and pituitary normal, can send strong instructions, but testicular sick, unable to perform productive hormones and sperms to the command.

(2) low gonadotrophin hypogonadism syndrome, this is because the hypothalamus and pituitary disease, not down testosterone production instructions.

(3) partial androgen resistance syndrome, the penis less sensitive to androgen, testosterone levels in patients with normal and abnormal secondary sex characteristics, and may even have hypospadias.

(4) idiopathic small penis, cause still unknown.

By the way, penis length measurement is important, is a weak measurement, the other is an erection when measuring changes. Measuring the room temperature should be around 25 ° c, stay calm and appropriate rest, and carried the penis with the hand flat, slightly hard to resist with a stiff ruler one end of the pubic symphysis, compress the subcutaneous fat layer and the other end to the external orifice of urethra of penis Glans as the benchmark, the digital read out is the normal length of the penis. Enlarged coronoid margin 1 cm away from the officials measure the circumference of the penis. Due to the patient's nervous or not adapted to the Office environment, they cannot erect in front of doctors, so holding extension instead of erect length of the penis.