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).
Red blood cells are also known as erythrocytes and they transport oxygen and carbon dioxide between the lungs and tissues. The production of red blood cells is also known as hematopoiesis; this process occurs in the bone marrow. The bone marrow is found in the spongy tissue in the middle of bones.