My fingers are always sore and stiff in the morning and they make a pop noise if I curl my fingers into a fist. They can also react to the weather. The bones in my fingers are slightly, but noticably, curved. Is it possible that I got arthritis (If that's indeed what I have) from my family? All of my older relatives have it and I'm only twenty years old. Can it be passed on genetically?
Genetics can obviously play a role. The likelihood of you suffering from rheumatoid arthritis is greatest if you have a family history of the disease. However, this is only a genetic weak link and this weak link needs to be exposed by your genes interacting with the environment, so it is not your destiny to suffer.
Genetics can apparently play a part in most medical conditions, including RA. I think this is why doctors ask for your family medical history when you first become their patient. So they know what health conditions are in your family genetics. Like you I have RA in a family Genes, my father suffered from the condition for most of his adult life. However, does this mean that I or one of my siblings will get it, not necessarily it just means that we need to be aware of it being a genetic factor and knowing what to look out for with the condition. My best advice to you is don't worry about this or sweat it out. Right now you are healthy and shouldn't worry about something that hasn't happened yet,and might not even happen at all.
There is a chance that RA could be in your genes, but there's also a chance that it isn't. I was the first member on either side of my family to be diagnosed, so we don't know where that came from. A blood test may be able to determine if RA is present, and age has nothing to do with it. I was 45 when I was diagnosed, but I know a girl who contracted RA at just 3 years old. If you do have it, the earlier it is diagnosed, the better, as disease modifying drugs can slow down the progression of the disease.
I wonder if it is tendonitis or something like that. Did you ever figure out what was causing the snapping sounds in your hands? I am just curious if you ever found out the cause.