Because of the ultraviolet radiation it emits, the sun is inherently dangerous to human skin. In fact, the American Academy of Dermatology stipulates that there is no safe way to tan. Tanning is the skin's natural response to damage from the sun. Additionally, the Environmental Protection Agency proclaims

A tattoo is created by injecting ink into the dermis (the second layer of skin) to incorporate a form of skin decoration. Tattooing is practiced worldwide and has often been a part of cultural or religious rituals. In Western societies today, tattooing has re-emerged as a popular form of self-decoration. Technically,

According to the American Academy of Dermatology and the U.S. Department of Health and Human Services, ultraviolet (UV) radiation from tanning beds, tanning booths and sun lamps are known carcinogens (cancer-causing substances). Exposure to UV radiation during indoor tanning has been proven to increase

"Rash" is a general term for a wide variety of skin conditions. A rash refers to a change that affects the skin and usually appears as a red patch or small bumps or blisters on the skin. The majority of rashes are harmless and can be treated effectively with over-the-counter anti-itch creams, antihistamines

Shingles is a painful rash that is caused by the varicella zoster virus. It usually appears as a band or strip of blisters on one side of the body that goes from the spine around the front to the breastbone. However, shingles can also appear on the neck, nose and forehead. Shingles derives from the same

The skin is the body's largest organ and accounts for roughly 18% of an adult's weight. It serves as a protective outer layer that keeps in moisture and keeps out invasive organism (like infections). It protects our organs against injury. It also helps regulate the body's temperature and has self-healing

Scabies is a harmless but very itchy and highly contagious skin condition caused by mites that burrow into the skin and lay eggs. Symptoms include a severe itch, often worse at nighttime, and thin burrow tracks made of tiny bumps or blisters on the skin. Humans are allergic to the mites, which is what

Psoriasis is a skin condition that creates red patches of skin with white, flaky scales. It most commonly occurs on the elbows, knees and trunk, but can appear anywhere on the body. The first episode usually strikes between the ages of 15 and 35. It is a chronic condition that will then cycle through

Rosacea is a chronic skin condition that causes facial redness, acne-like pimples, visible small blood vessels on the face, swelling and/or watery, irritated eyes. This inflammation of the face can affect the cheeks, nose, chin, forehead or eyelids. More than 14 million Americans suffer from rosacea.

Roughly 300,000 people in the United States suffer from scleroderma. This chronic connective tissue disease results from an over-production of collagen in the skin and other organs. Scleroderma usually appears in people between the ages of 25 and 55. Women get scleroderma more often than men. The disease

Pruritus refers to the sensation of itching on the skin. It can be caused by a wide range of skin conditions, including dry skin, infection, fungus, other skin diseases and, rarely, cancer. While anyone can experience pruritus, it is more commonly seen among the elderly, diabetics, people with suppressed

Rocky Mountain Spotted Fever is a bacterial infection transmitted by ticks. It is relatively rare, but can cause serious damage to the heart, lungs and brain. The difficulty lies in diagnosis because many people are unaware that they've been bitten by a tick. Three types of ticks transmit the Rickettsia

Ringworm is a common fungal infection, especially among children, that appears on different parts of the body. It is characterized by ring-shaped, scaly and itchy patches of the skin. The patches may blister or ooze fluid. Ringworm is contagious and can be passed from person to person or through contact

Although less common, there are a few skin conditions related to pregnancy: PUPPP (Pruritic Uticarial Papules and Plaques of Pregnancy) This condition occurs in roughly one percent of pregnant women. It is characterized by itchy red bumps and hive-like rashes that usually appear on the belly or around

Poison ivy, poison oak and poison sumac are plants that produce an oil (urushiol) that causes an allergic reaction among humans. The inflammation is a reaction to contact with any part of the plant, which leads to burning, itching, redness and blisters. The inflammation is a form of contact dermatitis,

Lyme disease is a bacterial illness and inflammatory disease that spreads through tick bites. Deer ticks house the spirochete bacterium (Borellia burgdorferi) in their stomachs. When one of these ticks bites the human skin, it may pass the bacteria into the body. These ticks tend to be attracted to creases