Miliaria rubra is also known as:

Miliaria rubra is also known as:

• A. Prickly heat
• B. Heat rash
• C. Birthmark
• D. Both a and b

Answer: (D)

Miliaria rubra happens when sweat ducts are blocked in hot, humid conditions, leading to a red, itchy eruption. That combination of symptoms is why it’s commonly called prickly heat—the prickling sensation from trapped sweat—and heat rash, since it appears with overheating and sweating. A birthmark, on the other hand, is a congenital skin lesion and not related to sweat duct blockage, so it isn’t a name for miliaria rubra. Because both prickly heat and heat rash describe the same condition, those terms together best identify miliaria rubra.

Miliaria rubra happens when sweat ducts are blocked in hot, humid conditions, leading to a red, itchy eruption. That combination of symptoms is why it’s commonly called prickly heat—the prickling sensation from trapped sweat—and heat rash, since it appears with overheating and sweating. A birthmark, on the other hand, is a congenital skin lesion and not related to sweat duct blockage, so it isn’t a name for miliaria rubra. Because both prickly heat and heat rash describe the same condition, those terms together best identify miliaria rubra.