Colon polyps
THE SIGNIFICANCE OF POLYPS - The presence of polyps in the colon or rectum often raises questions for patients and their family. What is the significance of finding a polyp? Does this mean that I have, or will develop, colon or rectal ... [... more]
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Headache causes and diagnosis in adults
INTRODUCTION - Headache is one of the most common medical complaints. Headaches can be quite debilitating, although the vast majority are not due to life threatening disorders. Approximately 90 percent of headaches are caused by one of three ... [... more]
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Bedbugs
INTRODUCTION - Bedbugs are small insects that can infest homes and other structures. There are several species of bedbugs, one of which (Cimex lectularius) is responsible for the majority of infestations in temperate (moderate) climates; another ... [... more]
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Immunizations for travel
INTRODUCTION - Travel immunizations can help prevent many of the more serious travel-related health problems. It is important to plan ahead for these immunizations because most of them require four to six weeks to become effective. The ... [... more]
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Supplemental oxygen on commercial airlines
Preflight patient assessment High altitude and heart disease INTRODUCTION - As air travel has become more common, travel opportunities have increased for people with serious medical conditions. This includes passengers with lung disease who ... [... more]
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Colon cancer screening
INTRODUCTION - Colorectal cancer is a cancer that develops in the large intestine [colon ] or rectum. The primary goal of colon cancer screening is to prevent deaths from colon cancer. Screening tests can help identify cancers at an early and ... [... more]
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Hair loss in men and women (androgenetic alopecia)
INTRODUCTION - A number of conditions can affect the hair follicle and cause hair loss, also known as alopecia. The most common type of hair loss, affecting 30 to 40 percent of men and women, is an inherited condition called androgenetic ... [... more]
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Eye infections (conjunctivitis)
There is no cure for viral conjunctivitis. (See "Viral conjunctivitis treatment" below). Recovery can begin within days, although the symptoms frequently get worse for the first three to five days, with gradual improvement over the following [... more]
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Prostate cancer screening
INTRODUCTION - Prostate cancer screening involves testing for cancer in men who have no symptoms of the disease. This testing can find cancer at an early stage, when it may be more easily and effectively treated. However, medical experts disagree ... [... more]
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Acne
INTRODUCTION - Acne vulgaris is the most common skin disorder in North America. It affects an estimated 85 percent of adolescents, and is increasingly common among people over age 25. It may cause physical scars as well as embarrassment, anxiety, ... [... more]
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Chronic venous insufficiency
INTRODUCTION - Chronic venous insufficiency is a common disorder that affects the veins of the legs. Normally, these veins carry blood from the legs to the heart (show figure 1A-1B). In people with chronic venous insufficiency, the veins do not ... [... more]
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Psoriasis
INTRODUCTION - Psoriasis is a chronic skin disorder that causes areas of thickened, inflamed, red skin, often covered with silvery scales. Children and adolescents can develop psoriasis, but it occurs primarily in adults. Women and men are ... [... more]
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