Look at the labwork. There should be a value MCV*--mean corpuscular volume i.e size of red cells. If MCV is low that could be iron deficiency anemia (most commonly, there are other less common possibilities). If it is high that would raise the possibility of B12 or folic acid deficiency (again, there are other less common possibilities).
If the MCV is normal i.e. normochromic/normocytic anemia, the most common causes are liver disease and alcohol excess--not things I would expect to encounter in (assuming that pic is you) a young male on a board such as this. Don't believe me, google normochromic normocytic anemia.
Young men basically don't get iron deficiency anemia, and unless you are vegetarian and not taking B12, that is unlikely as well.
Bottom line: most practitioners looking at those labs values in a young male would tell you not to worry (if a doctor ordered those what did they tell you?) but by all means, get tested (certainly get tested if your MCV is abnormally high or low).
Let me know what you discover.
*standard blood tests in the US that report hemoglobin include RBC, hematocrit, platelet, MCV, and a few other ones. I can't imagine MCV not being included, but I don't know for sure what blood tests in your country include.
Edited by Benko, 24 July 2017 - 01:09 AM.