Sickle cell anaemia
Sickle cell anaemia is the most common and most serious form of sickle cell disease, in which the body produces too much red blood cells that are unstable.
What is a haematologist?
A haematologist is a specialist doctor who treats conditions that affect the blood – such as leukaemia and haemophilia – and the organs that make the blood.
Fifth disease (Slapped cheek disease)
Fifth disease or 'slapped cheek disease' is a fairly mild viral illness that appears as a red rash that makes children’s cheeks look like they’ve been slapped.
This inherited blood disorder prevents someone from making enough healthy haemoglobin to carry oxygen around the body, but it may not need treatment.
Stem cells are being researched to treat medical conditions, but they are ethically controversial in many cases. Read about stem cells on our partner pages.
White blood cells
White blood cells are a vital part of your immune system, detecting and dealing with infections. Find out more more about health problems involving white blood cells.
Red blood cells
Red blood cells carry oxygen around your body and transport carbon dioxide to the lungs. Learn about related health problems and how a healthy diet can help produce red blood cells.
Human T-cell leukaemia virus type 1 (HTLV-1) is a virus that infects T-cells, white blood cells that form part of the immune system. Learn more here.
Chemotherapy describes medicine that aims to stop or slow down the growth of cancer cells. Find out how 'chemo' treatment works and its side effects.
Leukaemia affects the formation of white blood cells. Not all types of leukaemia are curable and there are several risk factors and treatment types.