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Causes and symptoms of prurigo nodularis
Nodular prurigo, often referred to as prurigo nodularis, is a chronic skin disorder characterized by the development of intensely itchy nodules or bumps on the skin’s surface. These nodules can vary in size and color, often appearing as crusty, scaly, or hyperpigmented lesions. While the condition can affect individuals of any age, it is more commonly observed in adults. Here’s a quick look at the common causes and symptoms of prurigo nodularis. Causes and risk factors The precise cause of the disorder remains somewhat elusive, but several factors can contribute to its development and exacerbation. These may include: Itch-scratch cycle A primary factor driving prurigo nodularis is the relentless itch-scratch cycle. Patients with this condition often experience intense itching, which leads to scratching. The repeated trauma from scratching can result in the formation of nodules, making the condition progressively worse. Underlying skin conditions Prurigo nodularis is often associated with underlying skin conditions, such as eczema, atopic dermatitis, and contact dermatitis. These conditions can make the skin more susceptible to developing nodules. Psychological stress Stress can be a significant trigger. It can exacerbate itching and worsen the condition, creating a vicious cycle of discomfort and distress. Neurological factors Some researchers believe that prurigo nodularis may have neurological origins, with abnormal nerve signals playing a role in the development of nodules.