Just got my yearly health report. What should I do
Hello, I'm Dr. Branch, thanks for using Ask a Doctor.
Your monocyte count is slightly low, as usually the lower limit would be 200. However, the normal range for the monocyte count just means that usually 95% of healthy people will have a monocyte count within that range. This means that up to 5% of people will have monocyte counts outside this range, but still be completely normal.
There are very few diseases that would cause a low monocyte count, such as certain leukemias or inborn immune deficiencies, but these are rare and will have other abnormalities on their blood tests, such as a low total white blood cell count.
In your case, unless you are having other symptoms, I wouldn't worry about this at all. The blood cell counts continuously fluctuate, and likely your monocyte count will be normal the next time you check.
I hope that helps, please let me know if you have any other questions about that and I'd be glad to discuss it further with you.