Which of the following symptoms is a sign of ear-related issues?

The correct choice related to ear-related issues is nosebleeds. While a nosebleed may not directly indicate an inner ear issue, it can be a symptom associated with conditions affecting the nasal cavity and its proximity to the ear structure. Conditions such as allergies or sinus infections, which may cause congestion and pressure in the ear, are often accompanied by nosebleeds due to increased pressure, dryness, or irritation of the nasal mucosa.

It is essential to note that the other symptoms listed do not typically relate to ear issues. Black or bloody stools might indicate gastrointestinal bleeding or other serious conditions unrelated to the ear. Muscle pain is generally associated with musculoskeletal or systemic conditions rather than ear problems. Seizures, while a serious medical concern, are usually neurological and do not specifically point to ear-related disorders. Understanding the connections between symptoms and their potential underlying conditions can help in effective diagnosis and treatment in clinical practice.