12 Health Conditions Not a Lot of People Know About but a Surprising Amount of People Have

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In our daily lives, we often hear about common health conditions like diabetes, asthma, and high blood pressure. These conditions are widely discussed and well-recognized, making it easier for people to understand and seek help when needed.

However, there are several lesser-known health conditions that affect a significant number of individuals but don’t receive as much attention in everyday conversations.

1. Restless Legs Syndrome (RLS)

Woman With RLS - Restless Legs Syndrome. Sleeping In Bed.
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Restless Legs Syndrome, often abbreviated as RLS, is a neurological disorder that affects the legs and causes an irresistible urge to move them. Though not widely recognized, it impacts a surprising number of people around the world. Individuals with RLS may experience uncomfortable sensations such as tingling, itching, or crawling in their legs, especially when at rest or during sleep. This condition can lead to disrupted sleep patterns and affect one’s overall quality of life.

2. Polycystic Ovary Syndrome (PCOS)

Woman suffering from pelvic pain with uterus and ovaries anatomy. Cause of pain inclued dysmenorrhea, edometriosis, PCOS, PMS, STDs, gynecologic cancer.
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Polycystic Ovary Syndrome, or PCOS, is a common hormonal disorder that affects people with ovaries. It can lead to irregular menstrual cycles, excessive hair growth, acne, and infertility. Despite its prevalence, many individuals may not be aware they have PCOS, as its symptoms can vary widely. PCOS can also increase the risk of developing other health issues like diabetes and heart disease.

3. Fibromyalgia

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Fibromyalgia is a chronic pain disorder characterized by widespread musculoskeletal pain, fatigue, and tender points on the body. It affects millions of people worldwide, and its exact cause remains unclear. People with fibromyalgia often struggle with pain management and may experience cognitive difficulties, such as memory problems and difficulty concentrating. This condition can be challenging to diagnose, leading to delayed recognition and treatment.

4. Sjögren’s Syndrome

Bacterial Flexor Tenosynovitis.Infection of the tendon sheath, usually caused by bacteria entering through a wound.
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Sjögren’s Syndrome is an autoimmune disorder that primarily affects the salivary and tear glands, causing dry eyes and a dry mouth. It can also lead to joint pain, fatigue, and various other symptoms. Many individuals with Sjögren’s Syndrome may go undiagnosed or misdiagnosed, as its symptoms can overlap with other conditions. Early detection and management are crucial to prevent complications and improve the quality of life for those affected.

5. Raynaud’s Disease

Man showing hands with Raynaud syndrome, Raynaud's phenomenon or Raynaud's disease.
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Raynaud’s Disease, or Raynaud’s phenomenon, is a condition that affects blood flow to the extremities, typically the fingers and toes. In response to cold temperatures or stress, the blood vessels in these areas constrict, causing the affected digits to turn white, then blue, and finally red as blood flow returns. While Raynaud’s is relatively common, it often goes unnoticed or undiagnosed because people may attribute their symptoms to normal reactions to cold weather. Managing Raynaud’s involves lifestyle changes to avoid triggers and keep extremities warm.

6. Celiac Disease

Celiac Disease And Gluten Intolerance. Women Holding Spikelet Of Wheat.
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Celiac Disease is an autoimmune disorder that affects the small intestine’s ability to process gluten. While many may not be familiar with this condition, it impacts a significant number of individuals worldwide. When people with celiac disease consume gluten, it triggers an immune response, damaging the lining of the small intestine. This can lead to various symptoms, including digestive issues, fatigue, and skin problems. Diagnosis often involves blood tests and endoscopic procedures to confirm the condition.

7. Ehlers-Danlos Syndrome (EDS)

Ehlers danlos. A genetic disorder connective tissue.
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Ehlers-Danlos Syndrome is a group of rare genetic disorders that affect the body’s connective tissues. These conditions can manifest in various ways, such as hypermobility of joints, stretchy skin, and easy bruising. People with EDS may experience chronic pain, joint dislocations, and complications involving other organs. Due to its rarity and variability in symptoms, EDS often goes undiagnosed or misdiagnosed.

8. Myasthenia Gravis (MG)

close up on blue eyes girl face with one half closed eye, Myasth.
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Myasthenia Gravis is a neuromuscular disorder that affects the muscles responsible for voluntary movements. People with MG experience muscle weakness that worsens with activity and improves with rest. This condition is caused by the body’s immune system mistakenly attacking the receptors that transmit nerve signals to muscles. Despite its relatively low profile in public awareness, MG affects a substantial number of individuals and requires ongoing medical management.

9. POTS (Postural Orthostatic Tachycardia Syndrome)

Doctor using stethoscope to listen heartbeat of elderly patient. young Asian woman to detect abnormal heart rates from insufficient rest.
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POTS is a form of dysautonomia that affects the autonomic nervous system, resulting in an abnormal heart rate increase when transitioning from a lying down to a standing position. This syndrome often remains unrecognized, as its symptoms, such as dizziness, rapid heartbeat, and fatigue, can be attributed to various other causes. POTS can have a profound impact on daily life, making simple activities challenging for those affected.

10. Hemochromatosis

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Hemochromatosis is a genetic disorder that leads to excessive iron absorption by the body. Over time, this iron buildup can damage organs like the liver, heart, and pancreas. Despite being one of the most common genetic disorders, it often goes unnoticed until complications arise. Symptoms can include fatigue, joint pain, and discolored skin, but they can be mistaken for other conditions. Early diagnosis through blood tests can help manage hemochromatosis and prevent severe complications.

11. Pernicious Anemia

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Pernicious anemia is a lesser-known type of anemia that occurs when the body can’t absorb enough vitamin B12 from the food one eats. This condition can lead to fatigue, weakness, and nerve damage, among other symptoms. Despite its relative obscurity, pernicious anemia affects a surprising number of individuals worldwide. It’s often diagnosed through blood tests measuring vitamin B12 levels.

12. Chiari Malformation

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Chiari malformation is a structural defect in the base of the skull and cerebellum that can block cerebrospinal fluid flow and cause various neurological symptoms. While not widely discussed, it’s more common than people might think. Symptoms may include headaches, neck pain, and balance problems. Diagnosis typically involves imaging tests such as MRI scans.

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