Definitely yes, if you have a big or small penis is mostly defined by your genes. Sons of men with a large penis often have a large penis. Sons of men with a small penis often have a smaller penis. There are certainly exceptions, but in general genes are very dominant when it comes to erect penis size. From my own experience and research, genetics are the most dominant factor in size, environmental factors or lifestyle only have very limited to no effects.
The most important part of making your penis bigger is taking a useful supplement which maximizes all the exercises offered in this guide. You let the ingredients do the work for you by increasing your girth and length naturally. There’s a much lower chance that you’ll see genuine growth unless you supplement your exercises with studied ingredients backed by science. It’s also the safest way you can start noticing real size, instead of having to rely on difficult exercises which won’t deliver quick, lasting, and effective support.
Apart from the risks, penoplasty (surgical penile lengthening and girth enhancement, often by releasing the penile suspensory ligaments, so just an optical improvement) is the most expensive way for penile enhancement. According to About Health it ranges from $4000 up to $17000. If you are interested in surgical enhancement, we recommend reading the in-depth article on Medscape about possible surgical techniques and results. There is a less risky new method, the FDA-cleared Penuma implant developed by my collegue Dr. Elist (James Elist, MD) for flacid size enlargement, but the erect size lengthening is minimal and the cost is in the low five digits, too.
If you think that your penis is too small, be sure to measure it accurately. Even if it is shorter than average, it's important to place the size of your penis in context and ask yourself why it is causing you such distress. It sometimes helps to speak with a psychologist who can help you sort through your feelings and provide the perspective you need.
To start this exercise, you will retrieve the erect phase by sitting on a chair edge. Hence, hold a towel over the penis head, increase the penis head, and hold it for three or five seconds. You should do three or five sets with five to ten reps. If you feel stronger, you can rise up the resistance by wet towel, or by a larger towel over the penis head. Before you start an exercise, you can warm up by using a warm cloth with warm water and squeeze it correctly.
Do a little Jelquing, or try Male Extra (more information available HERE) in order to get extra blood flowing to your organ. This is optional, but will help speed up the process. The key to most muscle and tissue recovery/growth is making sure the cells are getting oxygenated and receive the proper nutrients. Blood carries all of that to the tissue, so the more, the better.