Myasthenia Gravis: Which Medical Specialty Does It Belong To?

Patients with myasthenia gravis should seek care from a neurology department. The nervous system has three fundamental functions:

1. Motor Function

Motor function involves the movement of muscles throughout the body. For example, when speaking, the muscles of the tongue and throat, as well as the lips, are actively engaged to produce speech. Additionally, everyday activities such as walking, lifting arms or legs, and running all rely on proper motor function. Myasthenia gravis primarily affects these motor abilities, leading to muscle weakness that significantly impacts physical activity.

2. Sensory Function

Sensory function allows the body to respond to external stimuli. For instance, if someone touches a hot surface or feels a sharp object like a needle, the body instinctively pulls away. This protective response is part of the sensory role of the nervous system, which is a major component of how the body interacts with its environment.

3. Autonomic Nervous System

The autonomic nervous system, also known as the vegetative nervous system, controls involuntary bodily functions. This includes regulating heart rate, blood pressure, sweating, and even digestion. These processes occur continuously without conscious awareness, which is why they are referred to as "autonomic"—they operate independently of direct brain control.

Why Neurology?

When any of these three key functions—motor, sensory, or autonomic—are disrupted, a neurologist is the appropriate specialist to consult. Since myasthenia gravis directly affects muscle strength and motor performance, it clearly falls under the domain of neurology. Understanding the role of the nervous system in controlling body functions helps explain why this condition is diagnosed and treated by neurologists.