Haematology, which is sub-branch of internal diseases, is related to increasing or decreasing of anaemia, bleeding, coagulopathies, erythrocyte, leukocyte, platelet, lymphoma, leukaemia and plasma cell.


There are causes of anaemia such as iron deficiency anaemia, folic acid deficiency, B12 deficiency in this group diseases.

Anaemia which is known as a haemolytic anaemia, can be congenital or acquired to be result of anaemia because of the excessive erythrocyte destruction.

Mediterranean anaemia and haemoglobinopathy can be given as an example.

Bone marrow deficiency is generally more problematic diseases not only leucocyte and platelet deficiency but also anaemia.


It is a diseases group from little purple spot to the cause of bleeding to be related to various organs. Its symptoms are nasal bleeding, menstrual irregularity and gastrointestinal bleeding.

Bleeding may be related to vessel, thrombocyte or clotting factors. For example, thrombocytopenia (decreasing thrombocyte) which is related to a lot of causes has important place in this group.


This diseases that can be seen in every age causes very important questions such as lymphatic glad, spleen, liver, bone marrow. The treatment can be different according to its pathology and prevalence.


It is a diseases group which is sometimes decelerated process (chronic), sometimes quick process (acute) and is related to leukocyte mainly. The patients who have acute and chronic leukaemia can be treated by various opportunities of treatment according to the age of patient, the type of cell and the genotype of the patient.


It is a diseases group that is caused by the increasing of the number of the plasma cells with different rates and involvement of various organs. Multiple myeloma and waldenstrom’s macroglobulinemia which are seen in the middle age and eld age are in this group.