What symptoms are associated with tinea cruris?

Tinea cruris, commonly known as "jock itch," is a fungal infection of the groin area characterized by specific symptoms that help in its identification. The correct answer highlights the key symptoms associated with this condition. Itching is a prominent symptom, often causing discomfort and leading affected individuals to seek treatment.

The red-brown scaling that is observed in tinea cruris typically appears in a symmetric pattern, commonly along the groin, inner thighs, and buttocks. This scaling can be prominent and may have a raised border, which is a common feature of many dermatophyte infections.

In contrast, the other options describe symptoms associated with different conditions. Thickened nails and separation from the nail bed are typical of a fungal infection of the nails (onychomycosis). Scattered bald patches are indicative of alopecia areata, an autoimmune condition that results in hair loss. Pain in the facial muscles does not relate to tinea cruris but may be associated with other medical conditions, such as infections or myofascial pain syndromes. Understanding these distinctions is crucial for accurate diagnosis and treatment.