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Secondhand Smoke (Passive Smoking)
#secondhand smoke, #passive smoking, #smoking cessation, #heart disease, #stroke, #lung cancer, #diabetes mellitus, #respiratory system, #headache, #a splitting headache, #migraine, #back-of-head pain, #dry cough, #persistent cough, #cough that won't stop, #blood-streaked sputum, #coughing up blood, #weakness in arms and legs, #difficulty moving one side of the body
Secondhand smoke exposure, also called passive smoking, means that a person who does not smoke breathes in smoke from a smoker's cigarette. Tobacco smoke contains thousands of chemicals, including carcinogens (substances that can cause cancer), and long exposure in an enclosed space can be harmful even to nonsmokers. If you are concerned about secondhand smoke, please consult a medical specialist.2026-06-26
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Smoking, Health, and Quitting Smoking
#Smoking, #Smoking cessation, #E-cigarettes, #Nicotine, #Tar, #Lung cancer, #Cardiovascular disease, #COPD, #Smoking cessation medication, #Nicotine addiction, #Weakness in arms or legs, #One-sided weakness, #Chest anxiety, #Restlessness, #Unexplained worry, #Feeling down, #Lack of motivation, #Not wanting to do anything
Both regular cigarettes and e-cigarettes are harmful to health. Smoking raises the risk of many conditions, including lung cancer and other cancers, cardiovascular disease, and chronic obstructive pulmonary disease (COPD). Quitting smoking is not easy, but getting help from a medical specialist makes success more likely. If you've decided to quit, please work with a healthcare team rather than trying on your own.2026-06-26
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Angina (Angina Pectoris)
#angina, #chest pain, #myocardial infarction, #coronary artery, #atherosclerosis, #stent, #sudden death
Angina is a cardiovascular condition in which the coronary arteries — the blood vessels that supply oxygen and nutrients to the heart — become narrowed, causing a dull chest pain. Because heart disease can be a major cause of sudden death, if you feel chest discomfort that is different from what you normally experience, please do not delay in consulting a medical specialist.2026-06-26
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Aortic Dissection
#Aortic dissection, #Chest pain, #Aorta, #Emergency, #High blood pressure, #Cardiothoracic surgery, #Vascular graft, #Stent, #Acute aortic dissection, #Chest ache, #Tight chest, #Chest tightness, #Weakness in arms or legs, #One-sided weakness
Aortic dissection is a medical emergency in which the wall of the aorta — the largest artery in the body — tears starting from its inner layer. It is marked by the sudden onset of severe, stabbing chest pain. Without prompt treatment, it can be life-threatening. If these symptoms occur, please call emergency services (119 in Korea) right away and go to the emergency room.2026-06-26
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Asthma
#asthma, #bronchi, #allergy, #cough, #wheezing, #shortness of breath, #inhaler, #bronchodilator, #yellow dust, #fine particulate matter, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #dry cough, #persistent cough, #cough that won't stop
Asthma is a chronic respiratory condition in which the airways (the passages through which air moves in and out of the lungs) become hypersensitive, often due to allergic reactions, and narrow, causing recurring coughing, wheezing, and shortness of breath. It is sometimes mistaken for a severe cough or cold, which can delay proper treatment. Symptoms can worsen with exposure to yellow dust, fine particulate matter, or pollen. If you have recurring coughing or shortness of breath, please consult a pulmonologist or allergist.2026-06-26
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Bladder Cancer
#bladder cancer, #hematuria, #cystoscopy, #transurethral resection, #radical cystectomy, #BCG, #cancer immunotherapy, #smoking, #renal pelvis cancer, #ureteral cancer, #stomachache, #abdominal pain, #belly ache, #gut pain, #fever, #feeling hot, #high fever, #low-grade fever, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet, #frequent urination, #frequent bathroom visits, #blood in urine, #red urine, #bloody urine
Bladder cancer is a malignant tumor that develops in the inner lining of the bladder. In the early stages, treatment that preserves the bladder is often possible, but in advanced cases the bladder may need to be removed. Early detection is very important for treatment outcomes. If you have suspicious symptoms such as blood in the urine, be sure to consult a medical specialist.2026-06-26
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Cataract
#cataract, #lens, #vision loss, #presbyopia, #macular degeneration, #phacoemulsification, #intraocular lens, #multifocal lens, #blurry vision, #difficulty seeing, #cloudy vision, #double vision, #overlapping images
A cataract is a condition in which the lens inside the eye, which acts like a camera lens, becomes cloudy and vision declines. Aging is the most common cause. If your vision is blurry or dim, please consult an eye specialist (ophthalmologist).2026-06-26
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Cerebral Aneurysm
#cerebral aneurysm, #subarachnoid hemorrhage, #headache, #cerebral blood vessels, #coil embolization, #surgical clipping, #brain hemorrhage, #MRA, #CTA, #head pain, #splitting headache, #migraine, #pain at the back of the head, #double vision, #overlapping images
A cerebral aneurysm is a condition in which the wall of a blood vessel in the brain becomes abnormally thin and bulges outward. Before it ruptures, it usually causes no symptoms and is sometimes found by chance during a health checkup. Because a rupture can become a life-threatening emergency, people with risk factors are advised to talk with their doctor about regular screening. If a health checkup shows an abnormal finding, please consult a neurosurgery specialist, and if a sudden, severe headache occurs, seek immediate medical attention at an emergency room.2026-06-26
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Cerebral Hemorrhage
#cerebral hemorrhage, #stroke, #cerebral infarction, #intracranial pressure, #blood pressure management, #emergency surgery, #headache, #splitting headache, #migraine, #pain at the back of the head, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet, #weakness in the arms or legs, #difficulty moving one side of the body
Cerebral hemorrhage is a medical emergency in which a blood vessel in the brain ruptures and bleeding occurs. Blood pressure management is the most important way to prevent it, and if symptoms occur, you should go to the emergency room immediately.2026-06-26
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Chronic Obstructive Pulmonary Disease (COPD)
#COPD, #chronic obstructive pulmonary disease, #airway obstruction, #smoking, #pulmonary function test, #bronchodilator, #smoking cessation, #emphysema, #dry cough, #persistent minor cough, #cough that will not stop
Chronic obstructive pulmonary disease (COPD) is a chronic lung disease in which the airways (the passages through which air travels) gradually narrow, making breathing difficult. The leading cause is smoking. Airways that have narrowed are mostly not restored, so early detection and smoking cessation are especially important. If cough, sputum, or shortness of breath persists, please consult a pulmonology and allergy specialist.2026-06-26
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Chronic Renal Failure
#kidney transplantation, #chronic renal failure, #kidney, #end-stage renal disease, #hemodialysis, #immunosuppressants
The kidneys are important organs that filter waste products from the body and remove them in the urine. When a chronic disease has damaged the kidneys completely, a new kidney may need to be transplanted to sustain life. Lifelong careful management is needed even after transplantation, so please do not rely on this Health Encyclopedia alone; receive proper management through consultation with a transplant specialist.2026-06-26
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Diabetic Foot (Diabetic Foot Ulcer)
#diabetic foot, #diabetic foot ulcer, #diabetic complications, #lower limb reconstruction, #amputation, #blood vessels, #neuropathy
Diabetic foot (diabetic foot ulcer) is a complication of diabetes in which an ulcer (sore) forms on the foot and does not heal well. If it is not detected early and treated appropriately, amputation of the foot or leg may become necessary. If you have diabetes, check your feet often, and do not leave even a small wound unattended; please consult a medical specialist.2026-06-26
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Diabetic Retinopathy
#Diabetic retinopathy, #Macular edema, #Retina, #Neovascularization, #Vitreous hemorrhage, #Retinal detachment, #Diabetes complications, #Fundus exam, #OCT, #Vision loss, #Blindness, #Body swelling, #Face swelling, #Leg swelling, #Swollen hands and feet, #Blurry eyes, #Trouble seeing, #Blurred vision
Diabetic retinopathy is a condition in which prolonged high blood sugar damages the tiny blood vessels and nerve tissue of the retina, the light-sensing layer inside the eye. About 15 to 30% of diabetic patients in Korea have this condition, and it is important to have an annual eye exam even without symptoms. Diabetic retinopathy is one of the three leading causes of blindness in Korea, so early detection and appropriate treatment are essential to protecting your vision.2026-06-26
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Esophageal Diseases (Reflux Esophagitis and Esophageal Cancer)
#esophagus, #reflux esophagitis, #esophageal cancer, #heartburn, #reflux, #sphincter, #smoking cessation, #digestive system, #chest ache, #pain in the chest, #chest tightness, #stuffy feeling in the chest, #dry cough, #persistent cough, #cough that won't stop
The esophagus is a tube about 25 cm long that carries food from the mouth to the stomach. Reflux esophagitis and esophageal cancer are the main esophageal diseases. If you have symptoms such as heartburn, acid regurgitation (a sour taste rising into the throat), or a feeling that food is getting stuck, please consult a medical specialist.2026-06-26