2 Skin CancerSkin cancer is the uncontrolled growth of cancer cells in the skin. Left untreated, these cells can spread to other organs and tissues, such as lymph nodes and bone. Skin cancer is the most common cancer in the United States, affecting one in five Americans during their lifetimes, according to the Skin Cancer Foundation.
3 LupusLupus is an autoimmune disease that affects more than 1.5 million Americans, according to the Lupus Foundation of America. Normally, the immune system protects the body against foreign invaders like viruses and bacteria. In the case of a disease like lupus, the immune system mistakenly attacks the body and damages healthy tissues and organs. Lupus can cause problems with the kidneys, nervous system, blood vessels, and skin.
4 Measles (Rubeola)Rubeola (measles) is often confused with roseola and rubella (German measles), but these three conditions are different. Measles produces a splotchy reddish rash that spreads from head to foot. Roseola is a condition that affects infants and toddlers. It causes a rash to form on the trunk, which spreads to the upper arms and neck and fades within days. Rubella is a viral disease with symptoms including a rash and fever that last two to three days.
5 AcneYour skin has tiny holes called pores that that can become blocked by oil, bacteria, and dirt. When this occurs, you may develop a pimple or “zit.” If your skin is repeatedly affected by this condition, you may have acne.
6 HemangiomaHemangiomas are noncancerous growths that form due to an abnormal collection of blood vessels. They are usually found on the skin or internal organs— particularly the liver. Because they are congenital, most people develop them before birth, while they are still in the womb.
7 Cold SoreCold sores are red, fluid-filled blisters that appear near the mouth or on other areas of the face. In rare cases, cold sores may appear on the fingers, nose, or inside the mouth. There is no cure for cold sores, and infections tend to reoccur without warning. Sores are contagious and may persist for more than one week.
8 PsoriasisPlaque psoriasis is a chronic autoimmune condition that appears on the skin in patches of thick, red, scaly skin. It can affect anyone and is not contagious.
9 RosaceaAccording to the National Rosacea Society, rosacea is a chronic skin disease that affects more than 16 million Americans (NRS). The cause of rosacea is still unknown, and there is no cure. However, research has allowed doctors to develop a course of treatment that effectively controls rosacea by minimizing its symptoms.
10 EczemaEczema is a common skin condition marked itchy and inflamed patches of skin. It is also known as atopic dermatitis. It is more common in babies and young children. It occurs on the faces of infants, as well as inside the elbows and behind the knees of children, teenagers, and adults. It is caused by an overactive immune system
11 HivesHives, also known as urticaria, are itchy, raised welts that are found on the skin. They may be red and painful to touch. In most cases, hives are caused by an adverse reaction to medication or an allergic reaction to an irritant.
12 VitiligoVitiligo is a condition in which you lose the pigment of your skin. Pigment causes skin color and is produced by cells called “melanocytes.” Another word for pigment is “melanin.”
13 WartsWarts are raised bumps on your skin caused by the human papillomavirus (HPV).
14 Necrotizing Fasciitis Necrotizing fasciitis is a type of soft tissue infection. It can destroy the tissue in your skin and muscles as well as subcutaneous tissue.
15 Cutaneous Candidiasis While some fungal infections are not harmful, the candida fungus can be. This is because too much candida causes an infection known as candidiasis. While most candidiasis cases can be treated with improved hygiene, fungal infections can be very dangerous for those with weak immune systems.
16 CarbuncleA carbuncle is an infection of the skin that may be filled with pus. The infection usually occurs deep within your skin and involves your hair follicles. It is also called a staph skin infection.
17 CellulitisCellulitis is a common bacterial skin infection. Cellulitis may first appear as a red, swollen area that feels hot and tender to the touch. The redness and swelling often spread rapidly. Cellulitis is usually painful.
18 ImpetigoImpetigo is a highly contagious skin condition. It usually occurs on the face, neck, and hands of young children and infants. Children who wear diapers also tend to get it around the diaper area. Impetigo occurs more rarely in adults, usually following another skin condition or an infection.
19 Decubitus UlcerA decubitus ulcer, also called a pressure sore or bed sore, is an open wound on your skin. Pressure sores often occur on the skin covering bony areas. The most common places for a pressure sore to appear includes your hips, back, ankles, and buttocks.
20 Nail FungusThere are many different causes of fungal nail infections, and each cause has a treatment of its own. Although many of the causes of onychomycosis are preventable, some risk factors increase the likelihood of developing it. You are more likely to develop a fungal nail infection if you:have diabeteshave a disease that affects the blood vesselsare an older womanwear artificial nailsswim in a public swimming poolhave a nail injuryhave moist fingers or toes for an extended timehave a weakened immune systemwear closed shoes, such as tennis shoes or boots
21 DermatomyosisDermatomyositis is a rare inflammatory disease. It is an inflammatory myopathy, a condition that occurs when muscles become inflamed.
22 Molluscum Contagiosum Molluscum contagiosum is a skin infection that is caused by a virus. The virus, called the molluscum virus, produces benign raised lesions, or bumps, on the upper layers of your skin.
23 Ingrown ToenailIngrown toenails occur when the edges or corners of the nail grow into the skin next to the nail. Your big toe is most likely to get an ingrown toenail.
24 Sebaceous CystSebaceous cysts are common noncancerous cysts of the skin. Cysts are abnormalities in the body that may contain liquid or semi- liquid material.
25 Lichen PlanusLichen planus is a fairly common skin rash that is thought to be triggered by the immune system. Exactly why the immune response occurs is not known. There may be several contributing factors, and each case is different. Potential causes include viral infections, an allergen, or even stress or genetics. Sometimes lichen planus occurs along with autoimmune disorders.
26 Corns and CallusesCorns and calluses are the terms given to patches of hard, thickened skin.
27 ShinglesShingles (herpes zoster) occurs when the dormant chickenpox virus (varicella-zoster) is reactivated in your nerve tissues. Early signs of shingles include tingling and localized pain. Most, but not all, people with shingles develop a blistering rash. Typically, the shingles rash lasts two to four weeks, and most people make a complete recovery.