Good evening. In August, I did a routine blood test in which the platelet count was 125. at the end of September, I repeated the test, which showed 132 platelets. My GP says you have to look for the cause, so I went to the haematologist who said that such a drop was not dangerous, but he gave me a referral for an abdominal ultrasound that showed that I had a tiny extra spleen. The doctor performing the test said that it had no effect on the decrease in the number of platelets. The first study of morphology was performed in a different laboratory than the second, on the first result the norm showed 150-400, and on the second 130-400. I don't know which norm to suggest, I'm afraid it has to do with cancer, because my GP keeps saying that you should look for the cause of the decline, but two other doctors reassured me. Can such a decrease be caused, for example, by a deficiency of wiatamin B12? Should I go to a doctor or after the new year repeat the results and see what comes out in them? Thank you in advance for your reply, greetings.