The Different Types of POTS Explained

POTS can affect people in very different ways. While symptoms like dizziness, rapid heartbeat, fatigue, and brain fog are common, the underlying nervous system patterns behind those symptoms are not always the same. That’s why POTS is often divided into several subtypes based on how the autonomic nervous system is functioning.

Understanding the different types of POTS can help patients better recognize their symptoms and understand why treatment plans often need to be individualized.

Neuropathic POTS

Neuropathic POTS is commonly linked to dysfunction involving the small autonomic nerve fibers that help regulate blood vessel constriction.

When someone stands up, the nervous system should automatically tighten blood vessels in the lower body to help maintain steady blood flow to the brain. In neuropathic POTS, this response may not work efficiently, causing blood to pool in the legs and lower extremities.

As circulation becomes more difficult to regulate, the heart rate increases to compensate.

Common Symptoms of Neuropathic POTS

• Blood pooling in the legs

• Cold hands and feet

• Leg discoloration

• Tingling or numbness

• Dizziness when standing

• Leg heaviness or weakness

This subtype is often associated with circulation challenges and autonomic nerve dysfunction.

Hyperadrenergic POTS

Hyperadrenergic POTS involves excessive activation of the sympathetic nervous system, also known as the fight-or-flight response.

Instead of properly balancing stress responses, the nervous system may remain in an overstimulated state, leading to elevated stress hormone activity when standing upright.

Common Symptoms of Hyperadrenergic POTS

• Rapid heartbeat

• Tremors or shakiness

• Heart palpitations

• Sweating

• Anxiety-like sensations

• Elevated blood pressure upon standing

• Increased sensitivity to stress

Many individuals with this subtype report feeling constantly overstimulated or unable to fully calm their nervous system.

Hypovolemic POTS

Hypovolemic POTS is associated with lower-than-normal blood volume.

When the body does not maintain adequate fluid volume, circulation becomes more difficult to regulate during postural changes. The heart then works harder to maintain blood flow throughout the body and brain.

Common Symptoms of Hypovolemic POTS

• Chronic fatigue

• Weakness

• Dizziness

• Heat intolerance

• Excessive thirst

• Exercise intolerance

Reduced circulation may also contribute to symptoms like brain fog and low physical endurance.

Secondary POTS

Secondary POTS develops alongside another underlying condition that affects autonomic nervous system regulation.

In these cases, symptoms are connected to a broader health issue that disrupts normal neurological and circulatory function.

Conditions Commonly Associated With Secondary POTS

• Autoimmune disorders

• Ehlers-Danlos syndrome

• Lyme disease

• Lupus

• Diabetes

• Chronic fatigue syndrome

Managing the underlying condition is often an important part of improving autonomic symptoms.

Mixed POTS

Some patients experience characteristics from more than one subtype at the same time.

For example, someone may have circulation problems seen in neuropathic POTS while also experiencing excessive sympathetic nervous system activation associated with hyperadrenergic POTS.

Because symptom patterns can overlap, individualized evaluation is often important when determining the best approach to care.

Why Identifying the Type of POTS Matters

Each subtype of POTS can affect the nervous system and circulation differently. Identifying the dominant pattern may help guide more personalized treatment strategies focused on improving autonomic regulation and overall function.

Supportive therapies may include:

• Hydration and electrolyte support

• Compression garments

• Balance and coordination training

• Nervous system rehabilitation

• Exercise therapy

• Lifestyle modifications

• Nutritional support

Since no two cases are exactly alike, treatment often works best when tailored to the individual.

Final Thoughts

POTS is a complex autonomic nervous system condition with several distinct subtypes. Neuropathic, hyperadrenergic, hypovolemic, and secondary POTS can each create different symptom patterns and challenges for patients.

Understanding these differences may help individuals better recognize their symptoms, improve communication with healthcare providers, and explore more targeted approaches to nervous system support and recovery.