Anemia is a disorder in which there are abnormally lower levels of red blood cells which are responsible for carrying oxygen to various body tissues. There are several forms of anemia with its own underlying cause. It can be temporary or lifelong, and mild or severe.

The signs and symptoms vary based on the cause. In some instances, there may be no symptom. However, the following symptoms are generally associated with anemia: tiredness and weakness, shortness of breath, lightheadedness, irregular heartbeats, headaches, paleness of skin and chest pain.

The origin of anemia is based on the type. Anemia with genetic origin includes: hemolytic anemia is a type of anemia in which the rate at which the red blood cells are destroyed is more than its production rate which can be either inherited or developed in later life and sickle cell anemia is an inherited condition in which the abnormal hemoglobin causes the red blood cells to take sickle shape.

Anemia occurs due to: reduced production of red blood cells in the body, such as bone marrow disease, aplastic anemia, and vitamin or iron deficiency, destruction of red blood cells in the body, such as sickle cell anemia and excess loss of blood which makes it difficult to replace the red blood cells, such as hemolytic anemia.

Tuberculosis can be diagnosed using two types of tests, namely, TB skin test (mantoux test) and TB blood test. These are conducted to detect if TB bacteria is present in the body. In addition to these tests, chest X-ray and sputum sample are used for confirming whether a person is suffering from TB disease.