The liver is the largest endocrine gland in the body and has an essential role in metabolic processes and a number of important body functions such as detoxification, glycogen storage and manufacture of blood plasma proteins. Therefore any injuries or infectious diseases affect the liver will be harmful to the rest of the body. Viral Hepatitis group (A, B, C, D, E and G) are considered common diseases of the liver in the region. Viral Hepatitis (A): This virus spreads is transmitted from contaminated faeces to the mouth of a healthy person through food, water milk, touching or flies. so it increases with the lack of attention to personal hygiene. The incubation period is 15 to 50 days. Symptoms appear in form of sudden fever, malaise, loss of appetite, nausea, and yellowing of the skin and whites of the eye. Viral Hepatitis (B & C): These two types are transmitted through contaminated blood and blood products, or by using contaminated scalpels, injection, dental devices, and dialysis or through sex or from an infected mother to her foetus. Incubation period of hepatitis (B) is 60 to 90 days and then disease begins gradually with loss of appetite, confusion, indigestion, nausea, vomiting and sometimes pain in the joints and usually develops yellow discoloration of skin and sclera of the eyes and in some cases, the virus is present blood without any clear symptoms. In hepatitis (C) the incubation period is 6 to 9 weeks and then the symptoms begin gradually or be accompanied by loss of appetite, confusion digestive system with nausea and vomiting, and then may develop develops yellow discoloration of skin and sclera of the eyes. The severity of Viral hepatitis ranges from asymptomatic cases discovered accidentally when conducting lab viral tests or routine liver function tests to cases where the patient develops cirrhosis or liver tumours. Tips to prevent infection with hepatitis viruses: - Wash hands before & after eating and after defecating. - Combating flies and follows the proper ways to get rid of the garbage. - Not to eat food from street vendors. - Washing and disinfecting water tanks periodically. - Sterile syringes must be used only once and for one person only. - Wear a condom when one spouse is infected. - Vaccine must be taken against the hepatitis virus (A) and (B).