Hihy Health
Encyclopedia

Allergic Conjunctivitis

#allergic conjunctivitis, #allergy, #itchy eyes, #red eyes, #pollen, #conjunctivitis, #stuffy nose, #clear runny nose, #yellow runny nose

Allergic conjunctivitis is a condition in which the conjunctiva of the eye becomes inflamed in response to allergens such as pollen and fine dust. It is characterized by itchy, red eyes. If symptoms are severe or persist, please consult an ophthalmology specialist.

2026-06-26

Arrhythmia

#arrhythmia, #atrial fibrillation, #bradycardia, #tachycardia, #pacemaker, #ventricular fibrillation, #stroke, #anticoagulants, #dizziness, #spinning sensation, #unsteadiness, #vision going dark, #collapse, #loss of consciousness, #fainting, #lack of energy, #lethargy, #persistent fatigue, #rapid heartbeat, #pounding heart, #fast pulse

An arrhythmia is a condition in which the heartbeat is abnormally slow, fast, or irregular. The heart beats about 100,000 times a day to supply blood to the whole body, and when there is a problem with this rhythm, various symptoms may occur. The types and causes of arrhythmia vary, so if you have symptoms, be sure to consult a medical specialist.

2026-06-26

Blueberries

#blueberry, #antioxidant, #anthocyanin, #constipation, #colon, #vision, #blood circulation, #aging, #unable to pass stool, #difficulty passing stool, #hard stools

Blueberries are a fruit rich in antioxidants and have been associated with various potential health benefits. With a balance of sweetness and tartness, they taste good and can be enjoyed in many ways.

2026-06-26

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

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

Cerebrovascular Disease (Stroke)

#stroke, #cerebral infarction, #cerebral hemorrhage, #thrombolysis, #thrombectomy, #cerebrovascular disease, #winter stroke, #first aid, #post-stroke sequelae, #multidisciplinary care, #headache, #splitting headache, #migraine, #pain at the back of the head, #lightheadedness, #spinning sensation, #unsteadiness, #vision going dark, #weakness in the arms or legs, #difficulty moving one side of the body

Cerebrovascular disease (stroke) is a condition in which a blood vessel in the brain becomes blocked or ruptures, causing brain damage. To minimize aftereffects, prompt emergency response is most important, under the principle that 'time is brain.' The risk of stroke is especially high in winter and during seasonal changes, so please follow the prevention guidelines carefully.

2026-06-26

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

Dizziness

#dizziness, #vertigo, #balance disorder, #cerebral infarction, #orthostatic hypotension, #headache, #splitting headache, #migraine, #pain at the back of the head, #lightheadedness, #spinning sensation, #unsteadiness, #vision going dark, #collapse, #loss of consciousness, #fainting, #weakness in the arms or legs, #difficulty moving one side of the body, #anxious feeling, #nervousness, #worrying for no reason

Dizziness is a general term for a feeling that the surroundings are spinning or that it is hard to keep your balance. It may be caused by something simple, such as anemia or an ear problem, but it can also be a sign of a dangerous brain condition. Because the exact cause must be found and treated, please be sure to consult a medical specialist for an examination.

2026-06-26

Drug Allergy

#drug allergy, #anaphylaxis, #hives, #adverse drug reaction, #antibiotic allergy, #diagnosis, #prevention, #shortness of breath, #difficulty breathing, #labored breathing, #feeling of suffocation, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Drug allergy is a condition in which an allergic reaction occurs after taking a medication. Reactions range from mild ones, such as hives, to life-threatening anaphylaxis. It is important to identify the causative medication accurately and to inform your care team.

2026-06-26

Dry Eye Disease

#dry eye disease, #dry eye, #tears, #foreign body sensation, #artificial tears, #blepharitis, #lack of energy, #listlessness, #persistent tiredness, #anxious feeling, #nervousness, #worrying for no reason

Dry eye disease is a condition in which the surface of the eye becomes dry because there are not enough tears or the tears evaporate too quickly. It causes a variety of symptoms, such as stinging, dryness, and a feeling that something is in the eye. If symptoms are severe or persist, please consult an ophthalmology specialist.

2026-06-26

Epidemic Keratoconjunctivitis

#epidemic keratoconjunctivitis, #eye infection, #adenovirus, #conjunctivitis, #redness, #eyelid swelling, #contagious, #fever, #having a fever, #high fever, #low-grade fever, #body swelling, #facial swelling, #leg swelling, #swelling in hands and feet

Epidemic keratoconjunctivitis (EKC) is a highly contagious eye infection caused by adenovirus. It occurs most often in summer, and symptoms include eye redness, a foreign body sensation, and eyelid swelling. Personal hygiene is important, and if symptoms appear, please consult an ophthalmologist.

2026-06-26

Eye Health Care for Contact Lens Wearers

#contact lenses, #soft lenses, #rigid (hard) lenses, #keratitis, #lens care, #lens cleaning, #swimming, #body swelling, #facial swelling, #leg swelling, #swelling of the hands and feet

Because contact lenses sit directly on the cornea, improper use can lead to serious eye conditions such as keratitis and dry eye disease. Proper use and hygiene are important. If any unusual symptoms occur, please see an ophthalmology specialist right away.

2026-06-26

Gastritis

#Gastritis, #Acute gastritis, #Chronic gastritis, #Atrophic gastritis, #Intestinal metaplasia, #H. pylori, #Stomach cancer prevention, #Stomach pain, #My stomach hurts, #Stomachache, #Abdominal pain, #Food feels stuck, #Bloating, #Trouble digesting, #Burning stomach, #Stomach burning, #Acid regurgitation

Gastritis is inflammation of the stomach's mucosa (lining). It is often found on endoscopy even without symptoms. If left unmanaged, it can progress through atrophic gastritis and intestinal metaplasia toward stomach cancer, so regular screening and lifestyle management are important.

2026-06-26

Glaucoma

#glaucoma, #optic nerve, #intraocular pressure, #visual field loss, #normal-tension glaucoma, #how to use eye drops, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness

Glaucoma is a disease in which the optic nerve inside the eye is gradually damaged by high intraocular pressure or other factors, causing the visual field to narrow progressively. There are almost no symptoms in the early stage, so detection can be delayed, and rather than a cure, lifelong consistent management is important. Detecting it early through regular checkups and starting treatment is the best way to help prevent blindness.

2026-06-26

Headache

#Headache, #Migraine, #Tension-type headache, #Cerebral hemorrhage, #Stress, #Sleep disorder, #Caffeine, #Neurology, #Head pain, #Splitting headache, #Pain at the back of the head, #Weakness in arms or legs, #One-sided weakness, #Seeing double, #Overlapping vision, #Trouble falling asleep, #Waking up often, #Not sleeping deeply

Headache is a common symptom that almost anyone can experience, but it can also be a sign of a brain condition or a nervous system problem. If you find yourself relying too heavily on pain relievers to get rid of headaches, or if headaches are interfering with daily life, please don't try to judge the cause yourself — see a medical specialist.

2026-06-26