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Rotator Cuff

The rotator cuff is made up of four muscles that help move and stabilize the shoulder joint. Damage to any one of the four muscles or their ligaments that attach the muscle to bone can occur because of acute injury, chronic overuse, or gradual aging. This can cause significant pain and disability with range of motion or use of the shoulder ...

Scabies

Scabies is a very contagious skin condition that is caused by a mite that is so small it can only be seen with a magnifying glass or under a microscope. The mite cannot live more than three days without a human host, but it can survive up to a month when living on a human. The mite also lays eggs in human skin, which hatch and grow into adult ...

Schizophrenia

Schizophrenia is a chronic, severe, and disabling mental illness. It affects men and women with equal frequency.   People suffering from schizophrenia may have the following symptoms:    Delusions, false personal beliefs held with conviction in spite of reason or evidence to the contrary, not explained bythat ...

Sciatica

Sciatica (pronounced sigh-AT-ih-ka) is low back pain combined with a pain through the buttock and down one leg. The leg pain usually goes past the knee and may go farther to the foot. Sometimes, weakness in the leg muscles occurs with sciatica.   The sciatic nerves are the largest nerves in the body and are about the size of your ...

SARS

Severe acute respiratory syndrome (SARS) is a life-threatening viral respiratory illness caused by a coronavirus known as SARS-associated coronavirus (SARS-CoV). SARS is associated with a flu-likesyndrome, which may progress intopneumonia, respiratory failure, and sometimes death.   The SARS virus is believed to have originated in ...

STD

Sexually transmitted diseases (STDs, venereal diseases) are among the most common infectious diseases in the United States today. STDs are sometimes referred to as sexually transmitted infections, since these conditions involve the transmission of an infectious organism between sex partners.   More than 20 different STDs have been ...

Sinus Infections

Sinus infection, or sinusitis, is an inflammation of the sinuses and nasal passages. A sinus infection can cause a headache or pressure in the eyes, nose, cheek area, or on one side of the head. A person with a sinus infection may also have a cough,sore throat, fever, bad breath, and nasal congestion with thick nasal secretions. Sinusitis is ...

Skin Cancer

Skin cancer is the most common of all human cancers. Some form of skin cancer is diagnosed in more than 1 million people in the United States each year.   Cancer occurs when normal cells undergo a transformation during which they grow and multiply without normal controls.   As the cells multiply, they form a mass called ...

Skin Tag

A skin tag is a tiny, benign, outpouching of skin that is typically connected to the underlying skin by a thin stalk. Skin tags look like tiny bits of "hanging" skin and typically occur in sites where clothing rubs against the skin or where there is skin-to-skin friction, such as the underarms, neck, upper chest, and groin.   ...

Sleep Apnea

Sleep apnea means that your breathing often is blocked or partly blocked during sleep. The problem can be mild to severe, based on how often your lungs don't get enough air. This may happen from 5 to more than 50 times an hour.   This topic focuses on obstructive sleep apnea, which is the most common type.   A less ...

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