Hihy Health
Encyclopedia

Heart Failure

#heart failure, #dyspnea, #edema, #heart, #obesity, #high blood pressure, #myocardial infarction, #heart medication, #heart failure prevention, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #body swelling, #facial swelling, #leg swelling, #swelling in hands and feet

Heart failure is a condition in which the heart cannot supply as much blood as the body needs. With appropriate treatment and management, it is possible to maintain daily life, but if left untreated, symptoms such as shortness of breath and swelling can worsen. If you have risk factors such as high blood pressure, diabetes mellitus, or obesity, please see a medical specialist regularly.

2026-06-26

Heart Murmur

#heart murmur, #pediatric cardiology, #echocardiogram, #congenital heart disease

A heart murmur is an extra whooshing sound heard in addition to the normal heart sounds. It is commonly detected at infant and toddler checkups and is usually a normal finding, but it can be a sign of a heart defect, so evaluation by a pediatric cardiologist is needed.

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

Hematopoietic Stem Cell Transplantation (HSCT)

#hematopoietic stem cell transplantation, #bone marrow transplant, #autologous transplant, #allogeneic transplant, #graft-versus-host disease, #blood cancer, #leukemia, #lymphoma, #loose stool, #watery diarrhea, #frequent trips to the bathroom

Hematopoietic stem cell transplantation (HSCT) is a treatment that transplants hematopoietic stem cells, the cells that give rise to white blood cells, red blood cells, and platelets. It was previously known as bone marrow transplantation, but the name changed once it became possible to collect these cells from peripheral blood as well. It is mainly used to treat blood-related malignancies, and both the treatment process and follow-up care afterward are important.

2026-06-26

Hemolytic Uremic Syndrome (“Hamburger Disease”)

#Hemolytic uremic syndrome, #Hamburger disease, #HUS, #E. coli, #Acute kidney injury, #Thrombocytopenia, #Hemolytic anemia, #Body swelling, #Face swelling, #Leg swelling, #Swollen hands and feet, #Loose stool, #Watery diarrhea, #Frequent bowel movements, #Blood in stool, #Bloody stool, #Bright red stool

Hemolytic uremic syndrome (HUS) is a condition in which hemolytic anemia (anemia caused by the destruction of red blood cells), thrombocytopenia (a drop in platelets, the blood components that help stop bleeding), and acute kidney injury (a sudden decline in kidney function) occur together. It is also known as “hamburger disease,” a name that came from cases linked to eating undercooked hamburger patties. It occurs most often in children age 5 and younger. If these symptoms are suspected, please see a medical specialist right away.

2026-06-26

Hemorrhoids

#hemorrhoids, #piles, #anal fistula, #anal fissure, #rectal bleeding, #anal pain, #sitz bath, #rubber band ligation, #hemorrhoid surgery, #constipation, #difficulty passing stool, #hard stool, #blood on stool, #bloody stool, #bright red blood in stool

Hemorrhoids are swollen vascular tissue inside the anus that may bulge or protrude outside the anus. Most of what is commonly referred to as 'piles' is, in fact, hemorrhoids. If you have symptoms, please consult a medical specialist.

2026-06-26

Hepatitis A

#hepatitis A, #hepatitis, #acute hepatitis, #hepatitis vaccination, #contaminated food, #jaundice, #liver function, #feeling feverish, #body heat, #high fever, #low-grade fever, #lack of energy, #listlessness, #persistent tiredness

Hepatitis A is an acute infectious disease caused by the hepatitis A virus. It is spread through contaminated food or water, and most people recover. It does not progress to chronic hepatitis, but in rare cases it can take a serious course. People who do not have antibodies should be vaccinated.

2026-06-26

Hepatitis B

#hepatitis B, #chronic hepatitis, #antiviral drugs, #cirrhosis, #liver cancer, #HBV, #vaccination, #liver health, #lack of energy, #listlessness, #persistent tiredness, #dry cough, #persistent minor cough, #cough that will not stop

Hepatitis B is a liver inflammation caused by the hepatitis B virus. In Korea, about 30% of cirrhosis cases and 45% of liver cancer cases are associated with hepatitis B. It can be managed with proper care, including vaccination and consistent treatment, and regular checkups are important to help keep it from progressing to cirrhosis or liver cancer.

2026-06-26

Hepatitis C

#hepatitis C, #chronic hepatitis C, #antiviral drugs, #cirrhosis, #liver cancer, #bloodborne infection

Hepatitis C is an infection caused by the hepatitis C virus. In most people who are infected, it progresses to chronic hepatitis, and the risk of cirrhosis and liver cancer increases. If you are at risk of infection, please have a blood test to check.

2026-06-26

Hepatobiliary and Pancreatic Cancer

#liver cancer, #bile duct cancer, #pancreatic cancer, #hepatobiliary and pancreatic surgery, #chemotherapy

Hepatobiliary and pancreatic cancer often has no symptoms in the early stage and is frequently found when surgery is already difficult. However, with advances in medical technology, surgery may become possible after chemotherapy in some cases, so please consult a hepatobiliary and pancreatic surgery specialist.

2026-06-26

Herniated Cervical Disc (Cervical Disc Herniation)

#herniated cervical disc, #cervical disc herniation, #arm numbness, #neck pain, #forward head posture, #straight neck, #cervical spine, #sore neck, #pain in the back of the neck, #stiff neck, #numbness in hands and feet, #tingling arm, #tingling leg, #weakness in the arms or legs, #difficulty moving one side of the body

A herniated cervical disc (cervical disc herniation) is a condition in which a disc between the vertebrae of the neck presses on a nerve. The main symptoms are arm numbness or arm weakness. Most cases can be treated without surgery, but if there is paralysis or loss of bladder or bowel control, please consult a medical specialist immediately.

2026-06-26

Herniated Disc and Back Pain

#Herniated disc, #Disc herniation, #Lumbar disc herniation, #Thoracic spine, #Low back pain, #Leg numbness, #Cauda equina syndrome, #Arthroscopy, #Nerve block, #Numbness in hands and feet, #Arm numbness, #Tingling in the leg

The intervertebral disc acts as a cushion between the bones of the spine. When a disc is damaged or pushed out of place, it can press on nearby nerves and cause pain and numbness. Most cases improve with conservative treatment, but if symptoms are severe or there are signs of nerve damage, evaluation by a medical specialist is needed.

2026-06-26

Herniated Lumbar Disc (Lumbar Disc Herniation)

#herniated lumbar disc, #disc herniation, #intervertebral disc, #radiating leg pain, #sciatica, #low back pain, #spine, #low back ache, #back pain, #lower back strain, #numbness in hands and feet, #arm numbness, #tingling leg, #weakness in the arms or legs, #difficulty moving one side of the body

A herniated lumbar disc (lumbar disc herniation) occurs when a disc between the vertebrae of the spine moves out of its normal position and presses on a nerve. It is characterized by low back pain along with numbness or pain radiating down the leg. With timely treatment, most cases may improve without surgery.

2026-06-26

Herpes Zoster (Shingles)

#Herpes zoster, #Shingles, #Chickenpox, #Virus, #Neuralgia, #Rash, #Vaccination, #Immune system, #Low energy, #Fatigue, #Feeling tired all the time

Herpes zoster (shingles) is an infectious disease caused by the varicella-zoster virus. It is marked by severe pain and a band-like skin rash. If symptoms appear, it is important to see a medical specialist as soon as possible.

2026-06-26