The human liver is one of the most important organs of the body. It is responsible for cleaning our internal organs of the entire gunk and bile that is deposited by a person on a regular basis. But conditions like Gilbert's disease and other forms of liver disease makes our livers weak and prone to breaking down.

To understand better how the liver is affected by different kinds of diseases and the impact of these conditions to our body. Liver disease is a general term used in describing any kind of sickness affecting the liver. Many of theses conditions are accompanied by jaundice caused by the heightened levels of bilirubin in the system. The bilirubin is the product of the breakup of the hemoglobin of dead red blood cells; usually, the liver takes away bilirubin from the blood and excretes it through bile.

The following are some of the known conditions that are considered as liver diseases:

- Hepatitis. This is the inflammation of the liver. This caused mainly by different kinds of viruses, there are also times that it is caused by some poisons, even hereditary conditions.

- Cirrhosis. This is the formation of fibrous tissue in the liver, the fibrous tissue takes the place of dead liver cells.

- Haemochromatosis. This is a hereditary disease caused by too much iron in the body causing liver damage.

- Cancer of the liver. This is usually coming from other parts of the body that is also affected by cancer. Usually, when cancer cells metastasis, it reaches the liver and it starts spreading from there.

- Wilson's disease. This condition is hereditary and copper deposits in the body cause it.

- Budd-Chiari syndrome. This is caused by the obstruction of the person's hepatic vein.

- Gilbert's syndrome. This is a genetic disorder of bilirubin metabolism, found in about 5 percent of the population.

- Glycogen storage disease type II. Here, the build-up of glycogen causes progressive tissue weakness (myopathy) throughout the body and affects various body tissues, particularly in the heart, skeletal muscles, liver and nervous system.

There are also many pediatric liver diseases, including biliary atresia, alpha-1 antitrypsin deficiency, alagille syndrome, and progressive familial intrahepatic cholestasis, to name but a few.

A number of liver function tests are available to test the proper function of the liver. These test for the presence of enzymes in blood that are normally most abundant in liver tissue, metabolites or products.

Symptoms of a diseased liver

There are a few external signs that we could include to determine a diseased liver, some of those external signs are a coated tongue, bad breath, skin rashes, itchy skin, excessive sweating, offensive body odor, dark circles under the eyes, red swollen and itchy eyes, acne rosacea, brownish spots and blemishes on the skin, flushed facial appearance or excessive facial blood vessels.

There are other symptoms to look out for and they include jaundice, dark urine, pale stool, bone loss, easy bleeding, itching, small, spider-like blood vessels visible in the skin, enlarged spleen, fluid in the abdominal cavity, chills, pain from the biliary tract or pancrea, and an enlarged gallbladder.

The improper digestion and absorption of fats may lead to symptoms that include indigestion, reflux, hemorrhoids, gall stones, intolerance to fatty foods, intolerance to alcohol, nausea and vomiting attacks, abdominal bloating, and constipation. Unfortunately, some liver diseases like Gilbert's disease are known to share symptoms with other liver diseases. So it's better to consult a professional.