5. Hepatitis C

Hepatitis C Test 

Lichen planus is a type of bumpy rash that can be a sign of infection with hepatitis C. On the skin of the arms or legs, these bumps are usually purple in color, flat, and painless. When this rash occurs in the soft tissues of the mouth or vagina, it can cause painful sores. A blood test can determine whether this rash is due to hepatitis. Other causes of lichen planus may be a flu vaccine, exposure to certain chemicals, pain relievers, or even certain prescription medications.

4. Thyroid Disease

Thyroid Disruption

The occurrence of chronic hives may be a symptom of an underactive thyroid gland. Hashimoto’s thyroiditis is a condition in which the thyroid gland does not produce enough thyroid hormones. This can lead to excessive fatigue, weight gain, dry skin, and muscle aches. Graves’ disease is a condition in which the thyroid gland becomes overactive. Some people with Graves’ disease may experience a thickening of the skin on their shins. This condition is known as pretibial myxedema. Other more common signs of Graves’ disease are a fast and irregular heartbeat, enlarged thyroid gland, nervousness, and difficulty sleeping.

Related: 15 Thyroid Disease Symptoms You’re Ignoring

3. Inflammatory Bowel Disease

Irritable Bowel Syndrome

Patients with inflammatory bowel conditions such as Crohn’s disease or ulcerative colitis may also suffer from skin conditions. Pyoderma gangrenosum is a condition in which painful sores or ulcers form on the skin of the legs or other areas. This condition typically occurs in individuals suffering from other autoimmune disorders such as Crohn’s disease, ulcerative colitis, or rheumatoid arthritis. While these sores are unsightly and painful, they are not contagious and cannot be spread to others. Always contact your doctor if you develop skin wounds that seem to rapidly grow or spread.

2. Lupus


Lupus is another autoimmune disorder that may show up on your skin. The Lupus Foundation of America lists several types of rashes that lupus patients may display. The butterfly rash of lupus, called acute cutaneous lupus, is a characteristic rash that appears across the cheekbones and bridge of the nose. Discoid lupus appears as round lesions on the scalp or face. Subacute cutaneous lupus looks more like patches of red, scaly skin. This rash appears more commonly on the arms, shoulders, and neck. In addition to rashes, lupus patients may be more susceptible to sunburn and reactions from sun exposure.

1. Nutritional Deficiencies


A diet deficient in necessary vitamins, minerals, and nutrients can cause hair loss and leave your skin looking dry, scaly, and rough. A lack of B vitamins can result in hair loss, patchy, red skin, and increased fungal skin infections, according to Podiatry Today. Iron deficiency can leave an individual with pale skin, hair loss, and brittle or deformed nails. A lack of zinc can also cause thinning hair, inflamed skin, and dry or scaly patches on the skin.

Related: 9 Life-Threatening Conditions That May Present with Skin Rashes


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