Causes of Hair Loss in Children. There are many reasons kids' hair might fall out abnormally or excessively. The following conditions are the most common causes of hair loss in children: Tinea capitis. The most common cause of hair loss in children is an infection known as tinea capitis.
Bone Marrow and Blood Formation. Bone marrow is the spongy tissue that fills the cavities inside your bones. Most of your blood cells are made in your bone marrow. The process by which blood cells are made is called haemopoiesis.As an infant, haemopoiesis takes place at the centre of all bones. In later life, it is limited to the hips, ribs and breastbone (sternum).he process by which blood cells are made is called haemopoiesis. As an infant, haemopoiesis takes place at the centre of all bones. In later life, it is limited to the hips, ribs and breastbone (sternum).
A blood clot or thrombus is consists of blood cells occluded in a matrix of the protein fibrin. Thrombolysis or fibrinolysis is enzyme regulated process for dissolution of clot. In mammalian circulation, the enzyme responsible for the fibrinolysis is plasmin which is a trypsin-like serine protease [7].he biochemical conversion of the inactive plasminogen to fibrinolytic plasmin involves a limited proteolytic cleavage which is mediated by the various plasminogen activators [8]. Generally two plasminogen activators that occur naturally in blood are the tissue type (t-PA) and the urokinase type (u-PA).