List of Common Diseases: Most Common Illnesses

Need a list of common diseases? The most common illnesses are listed here by name, including information about their symptoms. They include the most common communicable diseases and and common infectious diseases. Most common bacterial diseases and common viral diseases can be gotten over quickly or treated medically by a doctor. Since these are so common, there's definitely treatments for these common ailments. For more information about genetic diseases you can see this genetic disorders list. For valuable information on central nervous system disorders see the central nervous system disorders page. What are the most common sicknesses? Finally if you are having any trouble going to the bathroom see the urinary system diseases page.
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  • Acne vulgaris is a long term skin condition characterized by areas of blackheads, whiteheads, pimples, greasy skin, and possibly scarring. The resulting appearance may lead to anxiety, reduced ...more
  • An allergy is a hypersensitivity disorder of the immune system. Symptoms include red eyes, itchiness, and runny nose, eczema, hives, or an asthma attack. Allergies can play a major role in conditions ...more
  • Antisocial personality disorder is characterized by a pervasive pattern of disregard for, or violation of, the rights of others. There may be an impoverished moral sense or conscience and a history ...more
  • ADHD/ADD
    Attention deficit hyperactivity disorder is a developmental neuropsychiatric disorder in which there are significant problems with executive functions that cause attention deficits, hyperactivity, or ...more
  • Altitude sickness—also known as acute mountain sickness, altitude illness, hypobaropathy, "the altitude bends", or soroche—is a pathological effect of high altitude on humans, caused by acute ...more
  • Alzheimer's Disease is a progressive, neurodegenerative disease characterized by loss of function and death of nerve cells in several areas of the brain leading to loss of cognitive function such as ...more