Granuloma Annulare Causes

What is Granuloma Annulare?

Granuloma annulare is an acute, long-term skin condition that consists of red or skin colored bumps that are raised and form a circular or ring-like pattern on the skin. According to, granuloma annulare usually appears on the hands and feet, but it can also affect other parts of the body including the legs, forearms, back, and eyelids.


Although it is a common condition, especially in many children and young adults, the cause of granuloma annulare is unknown. According to sources such as the University of Maryland Medical Center, granuloma annulare may be caused in association with diabetes, thyroid disease or other internal disorders.


The symptoms of granuloma annulare may take various forms. According to the American Osteopathic College of Dermatology, granuloma annulare may appear on both sides of the body in the form of a symmetrical rash. The area affected by this disease may be tender and result in small, firm bumps, also known as papules, that may join together and form rings. On rare occasions, granuloma annulare may consist of a hard or firm nodule under the skin in areas such as the arms and legs. Granuloma annulare may also cause severe itching in people over 40 years old.


Treatment for granuloma annulare may not be necessary because it is usually without symptoms. Since granuloma annulare causes unsightly lesions on the skin, treatment may be used for cosmetic reasons. In severe cases Trental and Ultraviolet treatment (PUVA) may be used to reduce the appearance of the disease on the skin. Potassium iodide, Dapsone, oral steroids, liquid nitrogen, prescription cortisone cream and injections are also used to treat granuloma annulare. Keep in mind that granuloma annulare may disappear on its own within a couple years with or without treatment.

In order to be sure that you have granuloma annulare in cases that are not obvious, your doctor may perform a skin biopsy in order to determine whether you have granuloma annulare, a fungal infection or another skin condition.

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