Myeloproliferative neoplasms (MPNs) are a group of diseases that affect how the bone marrow works. MPNs are also known as myeloproliferative disorders (MPDs).1
Blood cells are made in the bone marrow from stem cells, and MPNs are diseases that affect the way these stem cells develop and reproduce.1
There are a number of different MPNs, but all result in the production of too many of one or more blood cell types.1
The main types of MPNs are:1
It is common for people with MPNs to have few, if any, symptoms. However, if the disease is not adequately controlled then complications can occur, such as strokes and heart attacks.1 Effective treatment can reduce the risk of complications such as these. Therefore, if your doctor has prescribed you medication it is important to take it as advised, even if you don’t feel unwell.
If an MPN is suspected, blood tests will be carried out by a healthcare professional. These blood tests count the number of each type of cell in the blood.