Medical News Today has strict sourcing guidelines and draws only from peer-reviewed studies, academic research institutions, and medical journals and associations. According to the International Society for Sexual Medicine, the way the penis changes as people age may account for this age differentiation. The research did find an age difference between growers and showers. The study notes that confirming these findings requires more research, including larger scale, multicultural, and multinational studies. penis firmness after vasodilation injection.There were no differences in the showers or growers regarding: Growers also had a lower dose of the vasodilation drug. The research also reported that 37% of males who fell into the grower category were single, compared with 23% in the showers category, although this may also relate to age.
The mean age of the growers was 47.5 years, compared with an average of 55.9 years in the showers. Growers had an average length change of 5.3 cm, while showers had an average length change of 3.1 cm. Researchers measured flaccid penile length and gave participants a vasodilation drug before measuring erect penile length. The researchers defined a grower as having a flaccid to erect penile length increase of 4 centimeters (cm) or more, while an increase of less than 4 cm indicated that a person was a shower.Īll of the participants had previously undergone penile duplex ultrasound (PDDU) for erectile dysfunction. People may also experience inflammation and less blood flow to the penis as they age, which can affect erection.Ī 2018 study involving 274 males found that age played a role in whether participants were a grower or a shower. However, with age, the penis can lose tissue elasticity, which may affect how it stretches. The erectile tissue of the penis comprises:Īll of these allow the penis to become erect. What determines whether you’re a shower or grower