What Causes Irregular Skin?


Most of us have experienced an uneven skin tone known as uneven skin at some point. Mottled skin looks like discolored patches of skin that can be red, purple, or blue. Many of the causes of skin blemishes are temporary and are caused by environmental factors or exposure to irritants. Others, however, are serious medical conditions that require treatment.

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Changes in temperature can cause changes in the blood circulation of the body. When this happens, the color of the skin can change in response to more or less blood flow. Our skin can also change color due to sun damage.


You have most likely experienced a sunburn in your life. Inflammation and redness cause blemishes. This discoloration is due to sun damage to the skin. Excessive sun exposure without ultraviolet (UV) protection damages skin cells and accelerates skin aging. The blotchy redness is the result of inflammation caused by the damage.


Heat rash initially appears as a small pink rash on the neck, chest, and upper back. The rash looks like small pink bumps. It is more common in children and can occur after spending time outdoors in hot weather or participating in strenuous activities. Heat rash can also cause pain, itching, and a needle-like sensation.

Exposure to cold

When you first go out in cold weather, the blood vessels in your skin narrow or contract. This is done to minimize heat loss from the body. This narrowing of the blood vessels can cause changes in the appearance of the skin, including paleness and blue spots. The color change goes away on its own when your body warms up.

Although not as common, some people develop spots on their skin in cold weather due to hives. Hives, also known as hives , are scars on the skin that can result from an allergic reaction or a cold. Hives look like red, patchy skin and can be itchy and painful.

Does exercise cause uneven skin?

Exercise is good for almost everyone, but in rare cases it can cause health problems. Because exercise heats up the body, heat rash spots may appear on the skin during or immediately after exercise. Usually this only happens during very strenuous activities.

Exercise-induced hives are also possible. Symptoms include raised red scars, patchy red skin, and itching with exercise. In rare cases, life-threatening reactions such as anaphylaxis can occur. If you suspect that physical activity is causing hives, talk to your allergist about using antihistamines or other medications.


Skin changes, such as skin blemishes, are common with allergic reactions. Skin reactions can be temporary in the case of hives or chronic, as in eczema.


About 20% of us will experience hives at some point in our lives. Hives look like red scars and are caused by an allergic reaction. These scars are large bumps on the skin. They are usually red, very itchy, and can turn pale, meaning the center turns white when you press it.

You can get hives when your body reacts to an allergen, such as certain foods, plants, medications, or infections. In most cases, hives are temporary but can become chronic. If you have ever experienced hives with difficulty breathing or your throat feels closed, seek emergency medical attention.

Contact dermatitis

Contact dermatitis occurs when our skin reacts to contact with a substance that triggers the reaction. This occurs in approximately 15-20% of people and is the result of an allergic reaction or irritation. Contact dermatitis manifests as red, patchy skin and an itchy rash.

Contact dermatitis can be caused by hypersensitivity to common household items such as soap, washing powder, or perfume. A rash appears where the skin is exposed to an irritant. Allergens that can cause contact dermatitis include plants such as poison oak and poison ivy, as well as certain foods and medications.


Eczema , also known as atopic dermatitis, is a common cause of skin blemishes, affecting more than 31 million Americans. It includes a group of skin conditions that cause red, itchy patches on the skin. Other symptoms of eczema include dry skin, inflammation, thickening of the skin, and oozing sores.

Eczema is caused by an allergic reaction in the body, but researchers don't know why some people get it and others don't.

Hereditary conditions

Irregular skin and uneven skin color can be due to inherited diseases. For example, some people's skin genetically produces more melanin and becomes darker as a result of certain conditions, such as Addison's disease. It can also become lighter in conditions such as vitiligo (soft white areas of the skin) and albinism (skin with little or no pigment). If you notice discoloration over time, see your doctor.


Stress is the last thing you need when you are faced with a new health problem. Unfortunately, extreme stress can manifest itself on both our bodies and our skin. Stress can cause red, itchy rashes or hives. Burning and pain are also possible. Stress rashes can happen to anyone, but rashes are more common in people with a history of hives.

This stress-induced uneven skin can persist for several weeks. If you can't cope with your symptoms, talk to your doctor about treatment options and long-term methods for managing stress.


Rosacea is a common skin disorder that affects an estimated 14 million Americans. It usually begins with a tendency to blush easily. Other symptoms include redness, acne-like pimples, irritated skin, visible blood vessels, sensitivity to the sun, and inflammation.

The exact cause of rosacea is unknown, but it appears to be related to the immune system. People with fair skin and light eyes and hair are at higher risk of contracting rosacea, as are people in their 30s and 50s. A family history of rosacea and acne can also put you at higher risk.

Sun protection for skin with patches

While the sun can damage anyone's skin, people with sensitive skin prone to blemishes are at higher risk. If your skin is already irritated, sun exposure can increase redness, inflammation, and pain .

Protect your skin by covering it from the sun, staying in the shade outside, applying sunscreen every morning, and avoiding tanning beds.

scarlet fever

Scarlet fever , also known as scarlet fever, is caused by group A Streptococcus bacteria and can affect the appearance of the skin. In addition to fever and chills, scarlet fever can cause a red, bumpy rash about a day or two after the infection starts. The rash usually begins with flat patches on the skin that rise over time. It usually appears on the neck, armpits and groin.


Shingles is caused by the herpes zoster virus, which causes chickenpox and leads to a painful rash and blemishes on the skin. More than 1 million Americans develop shingles each year. The symptoms of shingles include:

  • Pain
  • Combustion
  • Blisters
  • Tingling or "electric" sensation

Shingles can also cause fever, headache, muscle aches, and vomiting. The virus will go away on its own, but you can control pain and symptoms with treatment. Shingles can come back as soon as it goes away, so it is important to talk with your healthcare provider about the shingles vaccine for the elderly and whether it is right for you.

The pregnancy

Pregnancy often changes skin tone. The hormones and other changes your body goes through during pregnancy can affect your skin and lead to a common condition known as melasma . Melasma, sometimes referred to as a pregnancy mask, causes brown spots on the face, usually affecting the neck, bridge of the nose, forehead, and chin. It can be caused by hormonal changes that have occurred during pregnancy and can be worsened by exposure to the sun. Melasma usually goes away on its own after pregnancy.

Alcoholic flush syndrome

If you've ever felt your cheeks and neck turn red after a few sips of a cocktail, you may have blushed from alcohol. This syndrome indicates an intolerance to alcohol, which is an inherited metabolic disorder. Alcohol intolerance can cause redness, redness, itching, and swelling of the skin. Other symptoms can include nausea and vomiting, rapid heart rate, low blood pressure, headache, and diarrhea.

Alcohol intolerance is caused by a lack of an enzyme that our body uses to metabolize alcohol. Drinking blush can be prevented by avoiding alcohol.

Get the word of drug information

Irregular skin is a change in skin color due to a reaction or condition. While most causes of skin blemishes can be treated at home, there are rare cases that indicate a life-threatening situation. When the body is in shock, for example, blemished and patchy skin can be the first sign. Shock includes other symptoms such as shortness of breath, palpitations, and weakness.

In most cases, skin blemishes are temporary, but always check with your doctor if you are concerned about new discoloration of your skin. If your patchy skin is accompanied by more serious symptoms, such as shortness of breath, seek emergency help immediately.

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