Hiya;
yes of course. Well, the first thing they will want to know is how deep it goes into your skin. this is usually called a Breslow thickness or depth, and is measured in millimetres, or mm so it might be say 0.7 or 1.5 or something like that.
Hopefully it'll be low, but anything over about 0.75 will mean they'll want to do a couple of things.
First a CT scan to see whether there is any other spread, ie into your lymph nodes or anywhere else. that;s the first place it goes normally, the nearest lymph basin so that will be your groin on that side. Another thing they will do is called a sentinel node biopsy/ SNB (again if it is over about .75mm)
This is when they inject a radioactive dye into the area of the mole, and see which lymph node it drains to first - then they will take out that node, or maybe two, and inspect it to see if there is any sign of cancer in it. If not, it probably hasn't spread and you can feel lucky!
If the thickness is less than .75 or so, they probably won't do this procedure. What you will probably have then is just a wider excision, or WLE, in which they take out further skin around the mole, to check it hasn't spread further around it. If these margins or edges are clear, they'll send you away with an appointment for a follow up in a few months. If there is more, again they might do the SNB or CT scan just to be safe.
Ok so if you get a positive on the SNB they will possibly take out the rest of the nodes in that area, but that's not a huge deal, and you could still be fine after that, for many years if not for good. One step at a time, for now - hopefully you won't need any of this stuff.
the results will usually be pretty quick, especially if there is anything bad! I'd expect it to be within a few days, either way, possibly up to a week or two if nothing bad.
They don't mess about with melanoma. Which is good!
Hope this helps, do ask if you have any more questions or don't understand anything (I am not the most organised of explainers!)
Let us know how you get on, if you feel like it. A few days won't make any difference to the outcome so try not to worry, take it easy, let everyone else look after you.