HGH side effects
HGH, or human growth hormone, can cause a lot of potential issues for concern. Fact is, HGH is a natural component that is formed in the human body and is one of the major "life serums" out there. It has amazing benefits like improved muscle tone, immunity, vision, and so on - it is essentially a home made elixir of life. The problem is that your body is the only one that knows how much it needs. Inside it has a clock and guage that tell it how much to produce over your life, and, like with most things, our conscious mind interprets that clock according to its own desires.

Well, the problem with that is that you can risk side effects. Although there haven't been many studies detailing HGH side effects, they are still there. Many report HGH side effects ranging from joint pain, inflammation, fluid and so on, to even blood problems and serious injury. We will probably never be able to fully test for HGH side effects because it is a banned substance and generally looked down upon - so funding for such endeavors would be very little. 

Here's a video discussing HGH side effects: