There are also traction devices which have been observed to cause small increases in length (1-2 cm overall) in some men. However, these devices are highly impractical, as they need to be worn for several hours every day in order to have an effect. You should consult a doctor before experimenting with any device to enlarge your penis, as there is a risk of side effects and injury if you don’t use it correctly. Evidence that using a traction device works is still limited.
While many men worry their penis is too small, research shows that most men's penises are normal and they needn't be concerned. Professor Kevan Wylie, a sexual medicine consultant, says men with concerns about their penis size should consider talking to a health professional before experimenting with treatments, which are mostly ineffective, expensive and potentially harmful.
Women who prefer deep vaginal stimulation want larger than average penises . Deep vaginal stimulation is the path to the desirable vaginal orgasm which differs from the clitoral orgasm she can get by herself any time she wants. One study showed that a “considerable percentage” of the women participants felt size of an erection was important  for her sexual satisfaction.
As previously noted, gaining weight can result in the penis appearing shorter because the base becomes buried in fat. Liposuction may be used to reduce the pubic fat pad to make the penis appear larger . Studies show that suprapubic liposuction is very safe and successful with minor or no complications when it is performed meticulously, and long with improving associated esthetic concerns, it may help improve self-esteem as well .