What is a common adverse effect to monitor for in a patient using corticosteroids such as triamcinolone?

Thinning of the skin is a well-documented adverse effect associated with the long-term use of corticosteroids, including triamcinolone. This phenomenon occurs because corticosteroids can inhibit fibroblast function and the synthesis of collagen in the skin, leading to a decrease in skin thickness and structural integrity. As a result, patients may experience easy bruising, fragility, and increased susceptibility to skin tears and injury. Monitoring for this effect is particularly important in patients who use corticosteroids topically on delicate skin areas or those who are on systemic corticosteroids for an extended period.

Other effects, such as increased appetite and fluid retention, can also occur with corticosteroid use, but thinning of the skin is more specific and significant in terms of its long-term impact on skin health and integrity. Pain at the application site is typically not a common adverse effect associated with corticosteroids unless there is an allergic reaction or irritation from the formulation rather than a direct consequence of the corticosteroid itself.