Hihy Health
Encyclopedia

Key Symptoms in Pediatric Emergencies

#pediatric emergency, #pediatrics, #emergency room, #fever, #febrile seizure, #dehydration, #cough, #rash, #hives, #fall, #chest pain, #seizure, #stomachache, #my stomach hurts, #stomach upset, #abdominal discomfort, #chest ache, #pain in the chest, #chest tightness, #stuffy feeling in the chest, #feverish, #having a fever, #high fever, #low-grade fever, #breathlessness, #difficulty breathing, #labored breathing, #feeling of suffocation, #dry cough, #persistent cough, #cough that won't stop, #racing heart, #pounding heart, #rapid pulse, #loose stool, #watery diarrhea, #frequent trips to the bathroom, #blood on stool, #bloody stool, #bright red stool

When a child suddenly becomes ill, it can be difficult to decide whether to go to the emergency room right away or to wait and see a local clinic. Unlike adults, children can worsen quickly, so if your child looks or acts differently from usual, do not hesitate to seek medical care.

2026-06-26

Liver Cirrhosis

#liver cirrhosis, #cirrhosis, #liver disease, #hepatitis B, #hepatitis C, #ascites, #jaundice, #hepatic encephalopathy, #variceal bleeding, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Liver cirrhosis refers to a condition in which the liver has been damaged for a long time by various causes and has become hard. It is also called 'gangyeongbyeon' in Korean. When the liver hardens, it cannot perform its functions well. For an accurate diagnosis and treatment, please consult a medical specialist.

2026-06-26

Lung Cancer

#lung cancer, #non-small cell lung cancer, #small cell lung cancer, #lung cancer screening, #low-dose CT, #targeted therapy, #immunotherapy, #bronchoscopy, #low energy, #lethargy, #persistent tiredness, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation, #dry cough, #persistent cough, #cough that won't stop, #nausea, #feeling like vomiting, #vomiting, #weakness in the arms or legs, #one-sided weakness

Lung cancer is a malignant tumor that develops in the bronchi or lungs and is the leading cause of cancer death in Korea. It often causes no symptoms in its early stages, so regular screening is important for high-risk groups. Smoking is the leading cause, and quitting smoking is the most effective way to help prevent it.

2026-06-26

Meniere's Disease

#Meniere's disease, #dizziness, #hearing loss, #tinnitus, #inner ear, #vestibular organ, #endolymph, #aural fullness, #lightheadedness, #spinning sensation, #unsteadiness, #vision going dark, #nausea, #feeling about to vomit, #vomiting, #blurry vision, #difficulty seeing, #hazy vision, #ringing in the ears, #noise in the ear, #cannot hear, #difficulty hearing sounds

Meniere's disease is a condition in which excess endolymph builds up in the inner ear, raising the pressure and causing repeated episodes of dizziness, hearing loss, tinnitus, and a feeling of fullness in the ear. The inner ear is the innermost part of the ear and consists of the cochlea, which is responsible for hearing, and the vestibular organ, which is responsible for balance. If left untreated, hearing and vestibular function may worsen permanently. Please consult an otolaryngology (ENT) specialist.

2026-06-26

Moyamoya Disease

#Moyamoya disease, #cerebrovascular, #cerebral infarction, #cerebral hemorrhage, #transient ischemic attack, #revascularization surgery, #pediatric stroke, #headache, #splitting headache, #migraine, #pain at the back of the head, #weakness in the arms or legs, #difficulty moving one side of the body

Moyamoya disease is a rare cerebrovascular disease in which the major blood vessels leading to the brain gradually become blocked and abnormal blood vessels form. It often presents as cerebral infarction in children and as cerebral hemorrhage in adults. Whether symptoms are present or the condition is found incidentally, please consult a neurosurgery specialist.

2026-06-26

Multiple Myeloma

#multiple myeloma, #blood cancer, #plasma cell, #fracture, #vertebral fracture, #bone pain, #kidney failure, #monoclonal antibody, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet, #nausea, #feeling about to vomit, #vomiting, #unable to pass stool, #difficulty having a bowel movement, #hard stools

Multiple myeloma is a blood cancer in which cancer develops in plasma cells (the cells that make antibodies). It mainly occurs in older adults. Anemia, kidney failure, bone pain, and repeated fractures are characteristic symptoms. If you develop bone pain, repeated fractures of unknown cause, or anemia, please consult a hematology-oncology specialist.

2026-06-26

Norovirus Infection

#norovirus, #food poisoning, #winter food poisoning, #acute gastroenteritis, #diarrhea, #vomiting, #handwashing, #stomachache, #tummy ache, #bellyache, #pain inside the abdomen, #feeling feverish, #body heat, #high fever, #low-grade fever, #lack of energy, #listlessness, #persistent tiredness, #loose stools, #watery diarrhea, #frequent bathroom visits

Norovirus infection is acute gastroenteritis caused by norovirus. It circulates mainly in winter (November to February) and spreads through contaminated food or water and through contact between people. Hygiene practices such as handwashing are the most important way to prevent it, and most people recover on their own.

2026-06-26

Pancreatic Cancer

#pancreatic cancer, #chemotherapy, #abdominal CT, #jaundice, #chronic pancreatitis

Pancreatic cancer is cancer that develops in the pancreas, an organ located deep within the body. Because it produces few early symptoms, it is often found at a later stage. Please do not attempt to self-diagnose using an online encyclopedia; if you notice any concerning symptoms, be sure to see a gastroenterology or hepatobiliary-pancreatic surgery specialist.

2026-06-26

Radiation Therapy

#radiation therapy, #anticancer therapy, #cancer treatment, #lack of energy, #lethargy, #persistent fatigue, #dry cough, #frequent mild cough, #persistent cough, #loose stool, #watery diarrhea, #frequent bowel movements

Radiation therapy is a treatment that uses high-energy radiation to damage the DNA of cancer cells, which stops their growth and ultimately destroys them. Some normal cells are also damaged, but they usually recover more quickly than cancer cells and may return to normal function after treatment ends.

2026-07-13

Situations Requiring an Emergency Room Visit During Chemotherapy

#anticancer therapy, #chemotherapy, #emergency, #abdominal pain, #stomachache, #bellyache, #pain inside the abdomen, #headache, #severe splitting headache, #migraine, #pain in the back of the head, #fever, #feeling feverish, #high fever, #low-grade fever, #body shaking, #shivering with cold, #chills, #shortness of breath, #difficulty breathing, #labored breathing, #feeling of suffocation, #body swelling, #facial swelling, #leg swelling, #swelling of hands and feet, #loose stool, #watery diarrhea, #frequent bowel movements, #blood on stool, #bloody stool, #bright red stool, #blood in urine, #red urine, #bloody urine, #weakness in arms and legs, #difficulty moving one side of the body, #hand tremor

Typical situations during chemotherapy that require an emergency room visit are listed below. Other emergency situations may also occur, so do not judge on your own based on the information below; please be sure to consult a medical specialist.

2026-07-13

Structure and Function of the Brain

#brain, #cerebrum, #cerebellum, #brainstem, #frontal lobe, #hippocampus, #neuroplasticity, #neuron, #dry cough, #persistent minor cough, #cough that will not stop

The brain is the most important organ in the body. It processes all sensory information, regulates bodily functions, and is responsible for mental activities such as memory, thinking, and emotion. It is broadly divided into the cerebrum, cerebellum, and brainstem, and each part has a specific role.

2026-06-26

Tongue Cancer

#tongue cancer, #oral cancer, #head and neck cancer, #squamous cell carcinoma, #smoking, #human papillomavirus, #HPV, #tongue ulcer, #glossectomy, #flap reconstruction, #nausea, #feeling like vomiting, #vomiting

Tongue cancer is a malignant tumor that develops in the tongue and accounts for about 10 to 15% of all head and neck cancers. Because early symptoms resemble those of stomatitis (mouth sores), it is often left untreated and found late. Treatment outcomes tend to be better when the cancer is detected early, so if you have a sore on the tongue that does not heal or a lump you can feel, please consult a medical specialist without delay.

2026-06-26

Treatment and Chemotherapy for Lung Cancer

#lung cancer, #chemotherapy, #targeted therapy, #immunotherapy, #cytotoxic chemotherapy, #loose stools, #watery diarrhea, #frequent bowel movements

Treatment for lung cancer — surgery or chemotherapy — is determined by the appearance of the cancer cells and how far the disease has spread. Please do not delay treatment out of fear of side effects; be sure to discuss your options with a pulmonology specialist to find a safe treatment approach suited to you.

2026-06-26

Vestibular Neuritis

#vestibular neuritis, #dizziness, #viral infection, #nystagmus, #vomiting, #feeling dizzy, #spinning sensation, #unsteadiness, #feeling faint

Vestibular neuritis is a condition in which inflammation of the vestibular nerve, located in the inner ear, causes severe spinning vertigo. If severe dizziness and vomiting continue for several days without relief, please visit a hospital for evaluation and medication from a medical specialist.

2026-06-26

Viral Hepatitis

#hepatitis A, #hepatitis B, #hepatitis C, #antiviral drugs, #hepatitis vaccination

Viral hepatitis is a disease in which a harmful virus invades the liver, causing inflammation and destroying liver cells. The route of transmission and the treatment differ depending on the type of virus (hepatitis A, B, or C). Please do not judge your condition on your own; consult a gastroenterology specialist for accurate blood tests and treatment.

2026-06-26