The Link Between Mast Cell Activation Syndrome (MCAS) and Fatigue Mast Cell Activation Syndrome (MCAS)…

Pradeep Chopra, MD, MHCM
Misdiagnosis in medicine is a persistent challenge, often leaving patients with delayed treatment, unnecessary procedures, and emotional scars. This is especially true for conditions like Ehlers-Danlos Syndrome (EDS), Postural Orthostatic Tachycardia Syndrome (POTS), and Mast Cell Activation Syndrome (MCAS), which are complex, misunderstood, and frequently overlooked.
The Reality of Misdiagnosis
Imagine visiting doctor after doctor, describing symptoms like joint pain, rapid heartbeats, or unexplained allergic reactions, only to be told, “It’s all in your head,” or labeled as “attention-seeking.” For many patients with EDS, POTS, or MCAS, this is their reality. These conditions have overlapping symptoms, such as fatigue, dizziness, and chronic pain, making it easy for even experienced doctors to mistake them for anxiety or depression.
Studies show that almost everyone will experience a diagnostic error in their lifetime, but the stakes are particularly high for these patients. Misdiagnosis doesn’t just delay care—it can make their symptoms worse, leave them feeling invalidated, and cost them financially and emotionally.
How Misdiagnosis Affects Lives
For adults, being misdiagnosed means living with untreated symptoms that disrupt daily life. For children, the consequences can be even more severe, potentially affecting their growth, education, and emotional development.
One of the most harmful scenarios occurs when physical symptoms are dismissed as psychological. For example, a child experiencing severe dizziness from POTS might be diagnosed with anxiety instead. They could receive therapy and medication for anxiety, while the real problem—dysfunction in their autonomic nervous system—goes untreated. Over time, this can lead to worsening health and mistrust of medical professionals.
Why Misdiagnosis Happens
There are several reasons for these mistakes:
The Ripple Effects
Beyond the personal toll, misdiagnosis also impacts families and healthcare systems. Parents of misdiagnosed children often feel blamed for their child’s issues, while the healthcare system bears the cost of repeated tests, consultations, and ineffective treatments. These ripple effects highlight the need for change.
The Path Forward
How can we prevent misdiagnosis and help those affected?
A Call for Change
Misdiagnosis of conditions like EDS, POTS, and MCAS is not just a medical issue—it’s a human one. It’s about the person who spends years searching for answers, the child who struggles at school because of untreated symptoms, and the family left in turmoil. By increasing awareness, improving diagnostic tools, and fostering patient-doctor collaboration, we can transform this story from one of struggle to one of hope and healing.