Hihy Health
Encyclopedia

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

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

Benign Paroxysmal Positional Vertigo (BPPV)

#benign paroxysmal positional vertigo, #BPPV, #dizziness, #vertigo, #vestibular system, #semicircular canals, #canalith repositioning, #ear, #balance, #feeling dizzy, #spinning sensation, #unsteadiness, #feeling faint, #nausea, #feeling like vomiting, #vomiting, #ringing in the ear, #tinnitus, #hearing loss, #difficulty hearing

Benign paroxysmal positional vertigo (BPPV) occurs when tiny particles called otoconia become dislodged from the balance organ of the inner ear (the vestibular system) and enter the semicircular canals. Otoconia are small crystals made of calcium carbonate, sometimes described as "ear stones." The main symptom is a spinning sensation that occurs with changes in head position. If you experience dizziness, please consult an ENT specialist.

2026-06-26

Benign Prostatic Hyperplasia (BPH)

#benign prostatic hyperplasia, #prostate, #lower urinary tract symptoms, #frequent urination, #nocturia, #urinary urgency, #sense of incomplete bladder emptying, #acute urinary retention, #alpha-blocker, #transurethral resection of the prostate, #headache, #a splitting headache, #migraine, #back-of-head pain, #urinating frequently, #frequent trips to the bathroom, #blood in urine, #red urine, #bloody urine

Benign prostatic hyperplasia (BPH) is a very common condition in men in which the prostate enlarges with age, narrowing the urethra and causing urinary symptoms. The prevalence rises with age, affecting about 50% of men in their 50s and 60% of men in their 60s. Without treatment, it can lead to complications such as acute urinary retention or kidney failure, so if you have symptoms, please consult a urologist.

2026-06-26

Blood Cancer

#blood cancer, #leukemia, #multiple myeloma, #platelets, #bone marrow, #anemia, #chemotherapy, #hematopoietic stem cell transplantation

Blood cancer refers to cancer that arises in the bone marrow, the organ responsible for producing blood cells. The bone marrow makes three types of blood cells: white blood cells, red blood cells, and platelets. When the bone marrow malfunctions, abnormalities in the number, shape, or function of these cells can cause a variety of symptoms. Frequent nosebleeds or easy bruising can occur, but these symptoms do not necessarily mean a person has blood cancer. If abnormal results appear on a blood test, please consult a hematology-oncology specialist.

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

Cholinergic Urticaria

#cholinergic urticaria, #hives, #exercise, #sweating, #body temperature, #allergy, #stinging sensation, #abdominal pain, #stomachache, #abdominal discomfort, #stomach pain

Cholinergic urticaria is a condition in which numerous small hives appear on the skin when body temperature rises, such as from strenuous exercise, mental stress, or a hot bath. Please consult a dermatology specialist.

2026-06-26

Colon Polyps

#Colon polyp, #Adenoma, #Colorectal cancer, #Colonoscopy, #Polypectomy, #Bloody stool, #Colorectal cancer prevention, #Stomach pain, #My stomach hurts, #Stomachache, #Abdominal pain, #Low energy, #Fatigue, #Feeling tired all the time, #Can't have a bowel movement, #Difficulty passing stool, #Hard stool, #Blood in stool, #Blood in bowel movements, #Bright red stool

A colon polyp is a benign growth that forms in the colon. Most cause no symptoms and are found incidentally during a colonoscopy. Because some polyps can develop into colorectal cancer, the standard practice is to remove them when they are found. If you are age 40 or older, please have regular colonoscopy screenings.

2026-06-26

Coronary Artery Disease (Angina and Myocardial Infarction)

#coronary artery disease, #angina, #myocardial infarction, #coronary angiography, #stent, #chest pain, #heart, #collapsing, #loss of consciousness, #passing out, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #indigestion, #bloating, #poor digestion, #anxious feeling in the chest, #restlessness, #worrying for no reason

Coronary artery disease is a condition that occurs when the coronary arteries, which supply blood to the heart, become narrowed or blocked. Angina and myocardial infarction are the main types, and myocardial infarction is an emergency that needs prompt treatment. If you have symptoms such as chest pain, seek immediate medical attention.

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

Gastroenteritis

#gastroenteritis, #diarrhea, #vomiting, #abdominal pain, #fluid replacement, #antidiarrheal medication, #dehydration, #stomachache, #my stomach hurts, #stomach upset, #abdominal discomfort, #fever, #having a fever, #high fever, #low-grade fever, #loose stool, #watery diarrhea, #frequent trips to the bathroom, #blood in stool, #bloody stool, #bright red stool

Gastroenteritis is inflammation of the intestines that causes symptoms such as vomiting, diarrhea, and abdominal pain. Most cases resolve on their own within 2 to 3 days. The most important part of treatment is adequate fluid replacement. If symptoms are severe or last a long time, please consult a medical specialist.

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

Heat Waves and Heart Health

#heat wave, #sudden cardiac death, #heat stroke, #heat-related illness, #heart attack, #angina, #cardiac arrest, #arrhythmia, #hydration, #summer health, #dizziness, #feeling faint, #unsteadiness, #vision going dark, #fainting, #loss of consciousness, #syncope, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation

Extreme heat raises the risk of angina, heart attack, and cardiac arrest by increasing heart rate, promoting blood clotting, and placing added strain on the heart. Older adults age 65 and older, people with cardiovascular disease, and those with chronic conditions such as high blood pressure or diabetes need to be especially careful. On days when a heat wave warning is issued, please stay active indoors for safety.

2026-06-26

Heat-Related Illness

#heat-related illness, #heat stroke, #heat exhaustion, #heat cramps, #heat edema, #heat wave, #dehydration, #summer health, #headache, #splitting headache, #migraine, #pain at the back of the head, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Heat-related illness is an acute emergency condition that occurs after prolonged exposure to a hot environment. It can cause headache, dizziness, muscle cramps, and, in severe cases, decreased consciousness. People who work outdoors, older adults, and children need to take particular care. If symptoms appear, move to a cool place immediately, and if heat stroke is suspected, call 119 (Korea's emergency number) right away. Please consult a medical specialist.

2026-06-26

Hypotension (Low Blood Pressure)

#hypotension, #orthostatic hypotension, #essential hypotension, #dizziness, #blood pressure, #shock, #headache, #a splitting headache, #migraine, #back-of-head pain, #feeling dizzy, #spinning sensation, #unsteadiness, #feeling faint, #lack of energy, #fatigue, #feeling tired all the time, #loose stool, #watery diarrhea, #frequent trips to the bathroom

Hypotension refers to blood pressure that is lower than normal. Some people have chronically low blood pressure, but when blood pressure that was normal or high suddenly drops, it can lead to serious consequences within a short time. If you experience a sudden drop in blood pressure, please seek prompt evaluation by a medical specialist.

2026-06-26