Connected Conditions: How Ehlers-Danlos Syndrome Impacts the Body’s System By: Laasya Bhumanpalli

 Introduction: 

Ehlers-Danlos Syndrome (EDS) is a group of genetic conditions that change how the body builds its connective tissues. Connective tissue is often called the body’s “glue” because it holds our joints, skin, and organs in place. While many people think Eds only makes a person flexible, it actually alters how several systems in the body work together. Specifically, EDS is frequently linked to two other conditions: POTS (a nervous system issue) and MCAS (an immune system issue). Together, these three conditions form a medical "triad" that impacts a patient's entire daily life. Understanding how these issues connect is the key to providing better medical care. 





The Foundation: Weakened Collagen

At its core, EDS happens because of mutations in genes that tell the body how to make collagen. Collagen is a strong protein that gives our tissues their shape and toughness. When a person has EDS, their body makes faulty or weak collagen. This causes their tissues to become overly stretchy and fragile. While this weakness shows up as loose joints and stretchy skin, it also affects the inside of the body. For example, blood vessels rely heavily on collagen to stay tight and push blood up toward the brain. When those vessels are made of weak collagen, they stretch out easily, which leads to secondary health complications. 

The Autonomic Connection: POTS 

Because the blood vessels in an EDS patient are too stretchy, gravity pulls their blood down into their legs and stomach when they stand up. In a healthy body, blood vessels squeeze tight to force blood back up to the brain. In an EDS patient, the blood pools in the lower half of the body instead. When the brain realizes it is not getting enough oxygen, it triggers a panic response in the autonomic nervous system. The body releases a rush of adrenaline, forcing the heart to beat incredibly fast just to keep the person from passing out. This condition is called Postural Orthostatic Tachycardia Syndrome (POTS). It causes patients to deal with severe dizziness, fainting, chronic fatigue, and heavy “brain fog” just from standing up.  

The Immune Connection: MCAS 

The third part of the triad is Mast cell Activation Syndrome (MCAS). Mast cells are a type of white blood cell responsible for causing allergic reactions when the body is under attack. In a normal immune system, these cells only release chemicals when you encounter a real allergen, like peanuts or bee venom. In people with EDS, these mast cells are physically unstable, likely because the connective tissue surrounding them is too loose to hold them steady. As a result, the mast cells “glitch” and break open easily. They release chemicals like histamine into the body over minor, random triggers like temperature changes, stress, or normal foods. This causes patients to experience sudden hives, stomach pain, breathing issues, and widespread inflammation without an obvious cause. 

Diagnostic Delays and Disparities:

Even though EDS is a genetic condition that people are born with, finding an accurate diagnosis is incredibly difficult. Because a patient might look completely healthy on the outside, EDS is widely considered an “invisible illness.” Statistics show that hypermobile EDS and POTS are diagnosed mostly in biological females, making about 80% to 90% of patients. Furthermore, because routine blood tests usually look normal. Doctors often misdiagnose these patients with anxiety or stress before realising that their symptoms are actually physical. On average, it takes a patient anywhere from 4 to 10 years to finally get the correct diagnoses. 

Why Awareness Matters:

Raising awareness about the EDS, POTS, and MCAS triad is essential for changing how the medical community treats chronic illnesses. When people learn about these conditions, it helps reduce the stigma surrounding invisible disabilities. Greater public and medical education means future doctors will be trained to spot these symptoms early on. This will cut down diagnostic details and guide patients toward proper physical therapy, and drive funding toward finding the missing genetic causes of hypermobile EDS. 

Conclusion:

In summary, Ehlers-Danlos Syndrome is a complex genetic condition that extends far beyond simple flexibility. By altering the body’s collagen, it sets off a chain reaction that disrupts the nervous and immune system through POTS and MCAS. True advocacy means looking at the whole patient, not just their joints. Through educational programs like the Teen Med Spot, we can spread the word, support early diagnoses, and improve the quality of life for families living with invisible illnesses.  






     Works Cited 

  1. Ehlers-Danlos Society. (2026). Dysautonomia. https://www.ehlers-danlos.com/dysautonomia/ 

  2. Kohn, A., & Chang, C. (2020). The relationship between hypermobile Ehlers-Danlos syndrome (hEDS), postural orthostatic tachycardia syndrome (POTS), and mast cell activation syndrome (MCAS). Clinical Reviews in Allergy & Immunology, 58(3), 273–297. https://pubmed.ncbi.nlm.nih.gov/31267471/

  3. National Institute of Neurological Disorders and Stroke. (2026). Postural Tachycardia Syndrome (POTS). National Institutes of Health. https://www.ninds.nih.gov/health-information/disorders/postural-tachycardia-syndrome-pots

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