What are the causes of monocytosis? • Chronic infections, including syphilis • Chronic inflammatory conditions (ulcerative colitis, rheumatoid ar...

Monocytosis refers to an increase in the number of monocytes in the blood. Some of the causes of monocytosis include: - Chronic infections, such as syphilis, tuberculosis, leishmaniasis, and Hansen's disease. - Chronic inflammatory conditions, including ulcerative colitis, rheumatoid arthritis, and systemic lupus erythematosus. - Carcinoma, which is a type of cancer. - Leukemic and myeloproliferative conditions, which involve abnormal growth of blood cells. - Long-term hemodialysis, a treatment for kidney failure. It's important to note that these are just some of the possible causes of monocytosis, and a proper diagnosis should be made by a healthcare professional based on individual symptoms and medical history.