Common Type of Diseases

Defining the word disease can be difficult because it can be complicated trying to figure out the difference between odd human behaviors, unusual physical characteristics, and real diseases. A general disease definition is the incorrect functioning of an organ or structure of the body as a result of genetics, developmental disorders, infections, poisons, nutritional imbalances, harmful environmental factors, and illnesses. Some of the most common diseases are diabetes, cancer, arthritis, and various skin conditions.


This is a chronic metabolic disease that comes in three forms – type 1, type 2 and gestational. Type 1, or insulin-dependent, diabetes is a condition in which the pancreas is unable to produce insulin. People with this condition have to inject themselves with insulin to lower and maintain their blood sugars at a proper level. People with Type 2 and pregnant women with gestational have a condition where the pancreas does not produce enough or properly functioning insulin to control blood sugars. Uncontrolled blood sugar can lead to heart attack, stroke, blindness, and limb amputation.


This is a disease where there is an abnormal growth of cells which can affect any part of the body with different levels of severity. There are over 100 types of cancer, and some of the most common types that are estimated to occur in the U.S. in 2016 are:

  • Breast – Over 249,000 cases.
  • Lung – Over 224,000 cases.
  • Prostate – Almost 181,000 cases.
  • Colorectal – 135,000 cases.
  • Melanoma and Bladder – Over 76,000 cases each.


Arthritis is the inflammation and swelling of the joints that results in chronic pain that affects a person’s ability to perform daily activities. This chronic condition can affect multiple areas of the body, and there is no one cause nor a cure for this condition that can develop in people of all ages. The three common forms of this condition are osteoarthritis, rheumatoid, and psoriatic.

Skin Conditions

The skin is the body’s largest organ that is prone to many diseases. Genetics, immune system problems, and conditions that irritate, clog, or inflame the skin can cause a variety of skin conditions. Some of these problems include acne, eczema, psoriasis, melanoma, hives, and moles.