Which symptom is NOT commonly associated with lead exposure?

Fatigue is not commonly recognized as a primary symptom of lead exposure, making it the correct choice in this context. Lead poisoning primarily presents with symptoms that are more acute and specific to neurological and physiological disruptions, particularly affecting the nervous system and causing peripheral neuropathy.

Wrist drop, a specific form of weakness in the muscles of the wrist, is directly associated with lead exposure due to its effects on the peripheral nervous system. Spermatogenesis issues are noted as lead can disrupt hormonal balance and affect reproductive health in men. Hearing loss is another symptom that can be attributed to lead exposure, particularly in cases of prolonged high-level exposure, impacting auditory function.

Each of the other symptoms directly correlates with known effects of lead toxicity, thus emphasizing the distinction with fatigue, which, while it can be experienced for many reasons, is not as specific to lead exposure as the other symptoms listed.