There are many types of immune system problems that are to be noted and can be divided into four categories. The first category of problems is immunodeficiency disorders. It can be primary or acquired. The second category of immune systems disorders is autoimmune disorders in which immune system attacks its own cells.

The third category of immune system problems is that immune system over reacts to an antigen and this type is called allergic disorders. The fourth and final type of immune system problems is cancers of immune system.The immunodeficiency disorders are one of immune system problems. These problems can be primary or acquired. The primary type of immunodeficiency disorder can be IgA deficiency which is most common of problems of immune system of this kind.

Hair removal in hands, legs, arms, underarms, bikini area, face, and eyebrows are commonly practiced these days. Sports persons go for hair removal since it will cut down wind resistance and improve their competitive speeds. There is a report saying that hair removal salons are getting more and more men customers for removing hair.

Different devices are used for hair removal in different parts of body. Waxing, sugaring, and electrolysis are most preferred methods for permanent body hair removal. Laser treatments are also used for permanent body hair removal. Waxing is a method of hair removal in which wax is applied over hairs and then a cotton strip is rubbed on wax in direction of hair growth.