Keloids are thick, firm, hard growths due to excessive scar tissue formation. They differ from ordinary scars and hypertrophic scars in that the scar tissue extends and spreads beyond the original wound margin. Rarely, these growths can occur spontaneously, even without any preceding skin injury. Keloids

Keratosis pilaris is a common skin condition characterized by rough, bumpy skin most often found on the back of the arms, thighs, and cheeks. It is a common finding in those with dry and sensitive skin. It typically affects children and teenagers and can improve or resolve over time. The condition is

Laser hair removal is a procedure used to remove unwanted facial and body hair. Lasers deliver concentrated beams of light which are absorbed by the pigment in hair follicles. The light energy is converted into heat, which ultimately damages the hair follicles, leading to decreased or absence of hair

Laser skin resurfacing are cosmetic laser treatment commonly used to treat fine lines and wrinkles, sun-damaged skin, and scars. The procedure can be further subclassified into 2 categories: ablative and non-ablative. Ablative lasers are more invasive. In this procedure, a highly concentrated beam of

Laser therapy is a broad term that describes treatments that use a single wavelength of light to target specific cells in the skin. The light energy is converted to heat energy, resulting in damage to the targeted cells and also triggering the skin’s repair mechanism, thereby stimulating collagen production.

Lentigo is a benign skin growth that resembles a freckle. It is usually a tan or brown spot that is flat or slightly raised. It can vary in size and shape and can occur as a singular lesion or as multiple lesions (lentigines). Lentigines have been classified into several types depending on their characteristics,

Lice are tiny insects that live on human hair and clothing fibers and can be seen with the naked eye. These tiny bugs attach to the hair and feed on human blood, causing intense itching in the affected areas. People can suffer from 3 different types of infestation: head lice (pediculosis capitis), body

Lichen planus is an inflammatory condition that can affect the skin, hair, nails, and mucous membranes (such as the mouth and genital region). On the skin, it presents as small, pink to purple, itchy, flat-topped papules. Though the rash can appear anywhere (including on the genital skin), favored sites

Lichen sclerosus is a chronic skin condition most commonly affects the genital skin. The affected areas become thin, white, crinkled, irritated, and/or intensely itchy. Blisters and sores can also form. Left untreated, the condition can lead to scarring and increase an individual’s risk for skin cancer,

OVERVIEW It’s not uncommon to occasionally have itchy skin. However, chronic itching could be a sign of a skin condition. Scratching and itching your skin can be a by-product of Lichen Simplex Chronicus or LSC. While more common in adults, it can happen to children as well. What is Lichen Simplex

Lichen simplex chronicus is a condition where repeated scratching or rubbing of a site creates a localized, itchy, thickened, leathery patch of skin. Lichen simplex chronicus can present as a solitary lesion or as multiple lesions—usually in areas that are easy to reach. The most commonly involved

OVERVIEW Lip injections are one of the most common kinds of dermal, or skin, fillers. According to a 2017 report by the American Society of Plastic Surgeons, lip injection demand increased 312% between 2000 and 2017. Celebrities and pop culture stars are often rumored to have lip injections to create

Lipomas are common fatty tumors that present as soft or rubbery lumps or bumps underneath the skin that are easily moved. They can occur as a solitary lesion or multiple lesions (often occurring in families). Lipomas can occur anywhere on the body where fat tissue is present, but are most common on the

There are literally hundreds of different kinds of lumps, bumps and cysts associated with the skin. Fortunately, the vast majority of these are harmless and painless. The chart below provides a guide for some of the most common forms of skin lumps, bumps and cysts. Dermatofibromas Characteristics Red,

Lupus is a group of autoimmune diseases where the body’s own immune system attacks healthy tissue leading to inflammation and damage in the affected organs. Lupus can affect the skin, joints, kidneys, brain, heart, lungs, and blood cells. Types of lupus include: Systemic Lupus Erythematosus (SLE)This

Lyme disease is a tick-borne illness caused by the bacteria Borrelia burgdorferi. It is transmitted to humans through the bite of an infected tick (commonly the deer tick). Early symptoms may include fever, chills, fatigue, headache, body aches, and a characteristic skin rash called erythema migrans.