Medical News Today

https://www.medicalnewstoday.com/articles/326503#devices

Penile extenders

Penile traction devices (penis extenders) stretch the tissues in the penis to increase its length.

Some research does indicate that these particular devices can increase penile length. In a 2015 study, 193 men wore a penis extender for 4-6 hours daily for a period of 6 months. After that time, the researchers found a mean increase between 0.9 and 2.5 cm (0.3-0.9″) in flaccid penis length.

According to a new 2020 systematic review of studies examining penis lengthening methods, extenders were able to increase flaccid penis length by less than 2 cm (0.7″).

Individuals interested in trying a penile extender should note that the research on extenders is limited and has involved only small sample sizes. Other criticisms include Trusted Source selection bias, which means that the randomization of the study participants may not be sufficient, and researchers may select them to achieve a particular result.

How to stretch safely

According to the existing research, most penis exercises and stretching devices are relatively low risk. However, complications can occur.

The side effects of exercises or devices can include:

broken blood vessels

itching, irritation, or redness

minor bruising

numbness

For exercises, there are steps that a person can take to stay comfortable while trying them:

Avoid stretching the penis when erect. The penis should always be flaccid.

Apply lubrication, such as petroleum jelly or natural oil, to the penis before trying any exercises.

Do not perform these exercises more than once or twice daily.

Stop immediately if an exercise causes pain or discomfort.

Discuss the use of these exercises with a doctor, especially if performing them regularly or for an extended period.