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What causes a rash on the legs?
What causes a rash of the lower extremities?
Can a lower leg rash spread?
- Dermatologic. The majority of rashes on the legs are dermatologic in nature. Many skin conditions such as eczema, hives, psoriasis and a variety of other illnesses that specifically affect the skin and its layers can result in a rash of the lower extremities.
- Inflammatory. Most causes of rash are inflammatory in nature. Infectious: The skin is home to a bacterium known as Staphylococcus aureus. Although it is a normal component of the skin flora, it is the leading cause of human bacterial infection and can result in redness and irritation superficially on the body.
- Systemic. Rashes in the lower legs may be a sign of an underlying, systemic condition. There are many illnesses that can also cause itching and they can be grouped into the following categories
- Environmental. There are many environmental causes for rashes on the lower extremities and other body parts. Allergens: The skin works primarily as a protective barrier and is very sensitive to environmental factors that cause irritation or allergic reactions.
- Squamous Cell Carcinoma
- Solar (Actinic) Keratosis
- Cellulitis
- Allergic Reaction to Poison Ivy/Oak/Sumac
- Allergic Contact Dermatitis of The Lower Leg
Squamous cell carcinoma(SCC) is a type of skin cancer. The most common spots for this cancer are the head (including scalp, lips, ears, and mouth), legs, and the backs of the hands and the arms. It appears on the skin as a tiny, painless bump or patch. The main risk factor for developing this condition is prolonged exposure to ultraviolet (UV) radi...
Actinic keratosis, also known as solar keratosis, is the most common skin condition caused by sun damage over many years. It appears as small, rough, raised growths that may be hard and warty. You should visit your primary care physician to have the affected skin evaluated. There are several treatments for actinic keratosis, including freezing the ...
Crohn's diseaseis an inflammation of the bowel. It is caused by a faulty immune system response which makes the body attack the lining of the intestines. The disease usually appears before age thirty and can affect anyone. Those with a family history may be most susceptible. Smoking is a known risk factor. Aggravating factors include stress, poor d...
Plants of the Toxicodendron genus are found throughout the continental United States, and exposure to these plants is a leading cause of contact dermititis, a medical term used to describe irritation and itching of the skin. Firstly, to prevent allergic reaction to poison ivyfrom getting worse, wash the affected area thoroughly with soap and water....
Allergic contact dermatitis means the skin has touched something that provoked an allergic reaction, causing inflammation and irritation. "Contact" means the allergic reaction came from touching something, not from consuming something. The first exposure to the substance sensitizes the immune system, and then the second exposure actually causes the...
May 31, 2022 · A rash on the legs is an inflammatory reaction of the skin that can have a variety of causes. Symptoms can include redness, itchiness, blistering, or peeling skin. Leg rashes are usually diagnosed and treated by a dermatologist. You may be able to treat a leg rash at home with over-the-counter creams or an oatmeal bath.
- Although most leg rashes are not life threatening, there are certain situations in which you should seek medical treatment for a rash. Talk with yo...
- Stress rashes often appear as small red bumps on the skin called hives. They can be itchy or cause a burning or tingling sensation. Also, they can...
- Symptoms of a viral rash depend on the type of virus causing the rash. A viral rash may look like red or purple dots or splotches on the skin. Othe...
Apr 1, 2024 · A vasculitis rash indicates that blood vessels within the dermis or hypodermis are damaged, causing their walls to swell, weaken, narrow, thicken, bulge, or leak. Location. Rashes from vasculitis most commonly appear on the lower legs but can occur anywhere, especially in areas prone to trauma or pressure.
- Colleen Doherty, MD
Jan 23, 2024 · A rash on the legs can be caused by inflammatory skin conditions, viral infections, bacterial infections, fungal infections, and allergic reactions. A rash on the legs typically resolves with treatment within a few weeks.
There are several different types of lower leg dermatitis: Atopic dermatitis. Discoid eczema. Varicose dermatitis. Gravitational dermatitis. Contact dermatitis. Autonomic denervation dermatitis. Lichen simplex. Pretibial pruritic papular dermatitis.
Mar 27, 2024 · Fleabites. Flea bites of the lower leg causing red bumps and scabbing. (Angela Hampton Picture Library / Alamy Stock Photo) Fleabite rashes are: usually located in clusters on the lower legs and...
