Q: Why Hemoglobin, Platelets, and White blood cells are all increased?

Question body: Hi, these are my mates blood test results, THEY have been slowly rising over the last few months. Any ideas what it could be?
Lymphocytes 4.3 high
Haemoglobin 159 high
White cells 14.9 high
Platelets 559 high
Mcv 105 high
Mch 36.9 high
Mchc 353 high
Neutrophils 8.3 high
Monocytes 1.1 high

Answer:
There are some possibilities; one of them is the Polycythemia, which characterized by increase in population of RBCs, some WBC, and PLT in CBC test results, Venesection is one treatment option.
Another possibility is the excessive RBC making (erythrocytosis) which makes your blood thicker than it should be, and it could increase your risk for blood clots. early investigation and diagnosis can eliminate the risks.