Disruptive Behavior Disorders (DBD's) are disorders characterized by behaviors that violate social norms and are disruptive not only to the person that has them, but to those around them as well. Adolescents with disruptive behavior disorder (DBD) a...
Diphtheria is a serious bacterial infection. It usually affects the nose and throat and causes a bad sore throat, swollen glands, fever and chills. It is caused by a bacteria named Corynebacterium diphtheriae. But the hallmark sign is a thick, gray...
Dermatitis affects about one in every five people at some time in their lives. It results from a variety of different causes and has various patterns. The terms dermatitis and eczema are often used interchangeably. In some cases the term eczematous...
Dependent Personality Disorder is a condition characterized by an over-reliance on others that leads to submissive and clinging behavior and fears of separation. The dependent and submissive behaviors arise from feeling unable to cope without the he...
Dementia (from Latin de- "apart, away" mens (genitive mentis) "mind") is the progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Although dementia is far more common in the...
Delusional disorder is a psychiatric diagnosis denoting a psychotic mental illness that involves holding one or more non-bizarre delusions in the absence of any other significant psychopathology (signs or symptoms of mental illness). In particular,...
Cystic fibrosis (CF) is an inherited disease of your mucus and sweat glands. It affects mostly your lungs, pancreas, liver, intestines, sinuses, and sex organs. Normally, mucus is watery. It keeps the linings of certain organs moist and prevents the...
Cushing's syndrome (also called hypercortisolism or hyperadrenocorticism) is an endocrine disorder caused by high levels of cortisol in the blood from a variety of causes, including primary pituitary adenoma (known as Cushing's disease), primary adr...
Cyclothymia is a mild form of bipolar disorder, characterized by alternating episodes of mood swings from mild or moderate depression to hypomania. Hypomania is defined as periods of elevated mood, euphoria and excitement that do not cause the perso...
Chronic fatigue syndrome (CFS) is one of several names given to a poorly understood, highly debilitating disorder of uncertain cause/causes, which is thought to affect approximately 4 per 1,000 adults. People previously healthy and full of energy ma...
Chickenpox is a common illness among kids, particularly those under age 12. An itchy rash of spots that look like blisters can appear all over the body and may be accompanied by flu-like symptoms. About one of every 100 children infected with chicke...
Cholecycstitis is a painful inflammation of the gallbladder, the small, pear-shaped sac under the liver that stores bile. It is commonly due to impaction (sticking) of a gallstone within the neck of the gall bladder, leading to inspissation of bile,...