Weirdly Interesting List of Common Diseases: Most Common Illnesses

Diseases and Medications Info
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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.

Acne is listed (or ranked) 1 on the list List of Common Diseases: Most Common Illnesses
Acne 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

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Allergy is listed (or ranked) 2 on the list List of Common Diseases: Most Common Illnesses
Allergy 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 ...more

Antisocial personality disorde... is listed (or ranked) 3 on the list List of Common Diseases: Most Common Illnesses
Antisocial personality disorder 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 ...more

Attention deficit hyperactivit... is listed (or ranked) 4 on the list List of Common Diseases: Most Common Illnesses
Attention deficit hyperactivity disorder ADHD/ADD Attention deficit hyperactivity disorder is a developmental neuropsychiatric disorder in which there are significant problems with executive functions that cause attention deficits, ...more

Altitude sickness is listed (or ranked) 5 on the list List of Common Diseases: Most Common Illnesses
Altitude sickness 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 ...more

Alzheimer's disease is listed (or ranked) 6 on the list List of Common Diseases: Most Common Illnesses
Alzheimer's disease 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 ...more

Andropause is listed (or ranked) 7 on the list List of Common Diseases: Most Common Illnesses
Andropause Andropause — also known as male menopause — is said to be the result of a gradual drop in testosterone which is an androgen. The medical community is currently debating whether or not men really ...more

Anorexia nervosa is listed (or ranked) 8 on the list List of Common Diseases: Most Common Illnesses
Anorexia nervosa Anorexia nervosa is an eating disorder characterized by food restriction, odd eating habits or rituals, obsession with having a thin figure, and an irrational fear of weight gain. It is ...more

Arthritis is listed (or ranked) 9 on the list List of Common Diseases: Most Common Illnesses
Arthritis Arthritis is a form of joint disorder that involves inflammation of one or more joints. There are over 100 different forms of arthritis. The most common form of arthritis is osteoarthritis, a ...more

Asperger syndrome is listed (or ranked) 10 on the list List of Common Diseases: Most Common Illnesses
Asperger syndrome Asperger syndrome, also known as Asperger's syndrome, Asperger disorder or simply Asperger's, is an autism spectrum disorder that is characterized by significant difficulties in social ...more

Asthma is listed (or ranked) 11 on the list List of Common Diseases: Most Common Illnesses
Asthma Asthma is a common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction and bronchospasm. Common symptoms include ...more

Autism is listed (or ranked) 12 on the list List of Common Diseases: Most Common Illnesses
Autism Autism is a neurodevelopmental disorder characterized by impaired social interaction, verbal and non-verbal communication, and restricted and repetitive behavior. Parents usually notice signs in ...more

Avoidant personality disorder is listed (or ranked) 13 on the list List of Common Diseases: Most Common Illnesses
Avoidant personality disorder Avoidant personality disorder, also known as anxious personality disorder, is a Cluster C personality disorder recognized in the Diagnostic and Statistical Manual of Mental Disorders handbook as ...more

Back pain is listed (or ranked) 14 on the list List of Common Diseases: Most Common Illnesses
Back Pain Back pain is pain felt in the back that usually originates from the muscles, nerves, bones, joints or other structures in the spine. However, internal structures such as the gallbladder and ...more

Bad Breath is listed (or ranked) 15 on the list List of Common Diseases: Most Common Illnesses
Bad Breath Halitosis

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Alopecia is listed (or ranked) 16 on the list List of Common Diseases: Most Common Illnesses
Alopecia Hair loss or baldness is a loss of hair from the head or body. Baldness can refer to general hair loss or androgenic alopecia. Some types of baldness can be caused by alopecia areata, an ...more

Nocturnal enuresis is listed (or ranked) 17 on the list List of Common Diseases: Most Common Illnesses
Bedwetting Nocturnal enuresis or nighttime urinary incontinence, commonly called bedwetting or sleepwetting, is involuntary urination while asleep after the age at which bladder control usually occurs. ...more

Bipolar disorder is listed (or ranked) 18 on the list List of Common Diseases: Most Common Illnesses
Bipolar disorder BD Bipolar disorder, also known as bipolar affective disorder, is a mental disorder characterized by periods of elevated mood and periods of depression. The elevated mood is significant and is ...more

Bladder cancer is listed (or ranked) 19 on the list List of Common Diseases: Most Common Illnesses
Bladder cancer Bladder carcinoma is a carcinoma arising from the bladder epithelium. Approximately 90% of the bladder carcinomas are transitional cell carcinomas. The remainder are squamous cell carcinomas, ...more

Body dysmorphic disorder is listed (or ranked) 20 on the list List of Common Diseases: Most Common Illnesses
Body dysmorphic disorder BDD Body dysmorphic disorder, is a disorder that involves belief that one's own appearance is unusually defective and is worthy of being hidden or fixed. This belief manifests in thoughts that many ...more

Borderline personality disorde... is listed (or ranked) 21 on the list List of Common Diseases: Most Common Illnesses
Borderline personality disorder BPD Borderline personality disorder is a cluster-B personality disorder, the essential feature of which is a pattern of marked impulsivity and instability of affects, interpersonal relationships, ...more

Bone cancer is listed (or ranked) 22 on the list List of Common Diseases: Most Common Illnesses

Brain Cancer is listed (or ranked) 23 on the list List of Common Diseases: Most Common Illnesses
Brain Cancer Brain cancer is a disease of the brain in which cancer cells (malignant) arise in the brain tissue. Cancer cells grow to form a mass of cancer tissue (tumor) that interferes with brain functions ...more

Breast cancer is listed (or ranked) 24 on the list List of Common Diseases: Most Common Illnesses
Breast cancer Breast cancer is cancer that develops from breast tissue. Signs of breast cancer may include a lump in the breast, a change in breast shape, dimpling of the skin, fluid coming from the nipple, ...more

Brain tumor is listed (or ranked) 25 on the list List of Common Diseases: Most Common Illnesses
Brain tumor A brain tumor or intracranial neoplasm occurs when abnormal cells form within the brain. There are two main types of tumors: malignant or cancerous tumors and benign tumors. Cancerous tumors can ...more

Traumatic brain injury is listed (or ranked) 26 on the list List of Common Diseases: Most Common Illnesses
Traumatic brain injury Any injury that results in trauma to the skull, or brain can be classified as a head injury. The terms traumatic brain injury and head injury are often used interchangeably in medical ...more

Acute bronchitis is listed (or ranked) 27 on the list List of Common Diseases: Most Common Illnesses
Acute bronchitis Acute bronchitis, also known as a chest cold, is short term inflammation of the bronchi of the lungs. The most common symptom is a cough. Other symptoms include coughing up mucus, wheezing, ...more

Burns is listed (or ranked) 28 on the list List of Common Diseases: Most Common Illnesses
Burns

Bursitis is listed (or ranked) 29 on the list List of Common Diseases: Most Common Illnesses
Bursitis Bursitis is the inflammation of one or more bursae of synovial fluid in the body. They are lined with a synovial membrane that secretes a lubricating synovial fluid. There are more than 150 ...more

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Cancer is listed (or ranked) 30 on the list List of Common Diseases: Most Common Illnesses
Cancer Malignant Neoplasm is a tumor composed of atypical neoplastic, often pleomorphic cells that invade other tissues. Malignant neoplasms often metastasize to distant anatomic sites and may recur ...more

Canker Sores is listed (or ranked) 31 on the list List of Common Diseases: Most Common Illnesses

Carpal tunnel syndrome is listed (or ranked) 32 on the list List of Common Diseases: Most Common Illnesses
Carpal tunnel syndrome CTS Carpal tunnel syndrome is a median entrapment neuropathy that causes paresthesia, pain, numbness, and other symptoms in the distribution of the median nerve due to its compression at the wrist ...more

Celiac disease is listed (or ranked) 33 on the list List of Common Diseases: Most Common Illnesses
Celiac disease Coeliac disease is an autoimmune disorder of the small intestine that occurs in genetically predisposed people of all ages from middle infancy onward. Symptoms include pain and discomfort in the ...more

Cervical cancer is listed (or ranked) 34 on the list List of Common Diseases: Most Common Illnesses
Cervical cancer Cervical cancer is a cancer arising from the cervix. It is due to the abnormal growth of cells that have the ability to invade or spread to other parts of the body. Early on there are typically ...more

Cholesterol is listed (or ranked) 35 on the list List of Common Diseases: Most Common Illnesses
Cholesterol

Chronic Obstructive Pulmonary ... is listed (or ranked) 36 on the list List of Common Diseases: Most Common Illnesses
Chronic Obstructive Pulmonary Disease COPD Chronic obstructive pulmonary disease, also known as chronic obstructive lung disease, and chronic obstructive airway disease, among others, is a type of obstructive lung disease characterized ...more

Colorectal cancer is listed (or ranked) 37 on the list List of Common Diseases: Most Common Illnesses
Colorectal cancer A cancer arising from the epithelial cells that line the lumen of the colon.

Heart failure is listed (or ranked) 38 on the list List of Common Diseases: Most Common Illnesses
Heart failure CHF Congestive Heart Failure is an inadequacy of the heart so that as a pump it fails to maintain the circulation of blood, with the result that congestion and edema develop in the tissues. Its ...more

Cradle cap is listed (or ranked) 39 on the list List of Common Diseases: Most Common Illnesses
Cradle cap Cradle cap is a yellowish, patchy, greasy, scaly and crusty skin rash that occurs on the scalp of recently born babies. It is usually not itchy and does not bother the baby. Cradle cap most ...more

Crohn's disease is listed (or ranked) 40 on the list List of Common Diseases: Most Common Illnesses
Crohn's disease Crohn's disease, also known as Crohn syndrome and regional enteritis, is a type of inflammatory bowel disease that may affect any part of the gastrointestinal tract from mouth to anus. Symptoms ...more

Dandruff is listed (or ranked) 41 on the list List of Common Diseases: Most Common Illnesses

Deep vein thrombosis is listed (or ranked) 42 on the list List of Common Diseases: Most Common Illnesses
Deep vein thrombosis DVT Deep vein thrombosis, or deep venous thrombosis, is the formation of a blood clot within a deep vein, predominantly in the legs. Non-specific signs may include pain, swelling, redness, warmness, ...more

Dehydration is listed (or ranked) 43 on the list List of Common Diseases: Most Common Illnesses
Dehydration In physiology and medicine, dehydration is the excessive loss of body water, with an accompanying disruption of metabolic processes. The term dehydration may be used loosely to refer to any ...more

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Dependent personality disorder is listed (or ranked) 44 on the list List of Common Diseases: Most Common Illnesses
Dependent personality disorder Dependent personality disorder, formerly known as asthenic personality disorder, is a personality disorder that is characterized by a pervasive psychological dependence on other people. This ...more

Depression is listed (or ranked) 45 on the list List of Common Diseases: Most Common Illnesses

Diabetes mellitus is listed (or ranked) 46 on the list List of Common Diseases: Most Common Illnesses
Diabetes mellitus Diabetes mellitus, commonly referred to as diabetes, is a group of metabolic diseases in which there are high blood sugar levels over a prolonged period. Symptoms of high blood sugar include ...more

Irritant diaper dermatitis is listed (or ranked) 47 on the list List of Common Diseases: Most Common Illnesses
Irritant diaper dermatitis Irritant diaper dermatitis, also known as "diaper dermatitis" and "napkin dermatitis" and commonly known as diaper rash or nappy rash, is a generic term applied to skin ...more

Diarrhea is listed (or ranked) 48 on the list List of Common Diseases: Most Common Illnesses
Diarrhea Diarrhea or diarrhoea is the condition of having at least three loose or liquid bowel movements each day. It often lasts for a few days and can result in dehydration due to fluid loss. Signs of ...more

Disabilities is listed (or ranked) 49 on the list List of Common Diseases: Most Common Illnesses
Disabilities

Diverticulitis is listed (or ranked) 50 on the list List of Common Diseases: Most Common Illnesses
Diverticulitis Diverticulitis is a common digestive disease which involves the formation of pouches within the bowel wall. This process is known as diverticulosis, and typically occurs within the large ...more