Hihy Health
Encyclopedia

Atlantoaxial Instability (Cervical Instability)

#cervical instability, #first cervical vertebra (C1), #second cervical vertebra (C2), #cervical disc herniation, #cervical spine surgery, #rheumatoid arthritis, #cervical fusion, #spinal cord, #numbness in hands and feet, #arm numbness, #tingling leg, #weakness in arms and legs, #difficulty moving one side of the body, #anxious feeling in the chest, #restlessness, #worrying for no reason

Cervical instability (atlantoaxial instability) is a condition in which the connection between the first and second neck bones (cervical vertebrae) becomes loose and allows excessive movement. Mild cases may cause no symptoms, but as it progresses it can compress the spinal cord and lead to serious nerve damage. It is relatively common in patients with rheumatoid arthritis. Please be sure to decide on an accurate diagnosis and treatment approach through a medical specialist.

2026-06-26

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

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

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

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 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

Low-Sodium Salt Substitutes

#kidney disease, #kidney, #low-sodium diet, #salt substitute, #hyperkalemia, #weakness in arms and legs, #difficulty moving one side of the body

Reducing sodium intake is beneficial, but people with poor kidney function who use salt substitutes that provide a salty taste without medical guidance may face life-threatening risks, such as cardiac arrest. Be sure to consult a nephrologist before using them.

2026-06-26

Meningioma

#meningioma, #brain tumor, #benign tumor, #Gamma Knife, #neurosurgery, #weakness in the arms or legs, #difficulty moving one side of the body

Meningioma is, in most cases, a slow-growing benign tumor. The timing and method of treatment that suit you should be decided carefully in consultation with a neurosurgery 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

Novalis Radiosurgery

#Novalis, #radiosurgery, #brain tumor, #cerebral arteriovenous malformation, #brain surgery, #weakness in arms and legs, #difficulty moving one side of the body

Novalis radiosurgery is a method that precisely treats brain tumors and cerebral vascular malformations without opening the skull. Because the safest treatment differs for each patient, be sure to consult a neurosurgeon thoroughly.

2026-06-26

Rheumatoid Cervical Spine Disease

#rheumatoid, #cervical spine, #myelopathy, #cervical instability, #upper cervical spine, #cervical myelopathy, #weakness in the arms or legs, #difficulty moving one side of the body, #anxious feeling, #nervousness, #worrying for no reason

Rheumatoid cervical spine disease is a condition of the neck (cervical spine) that can occur in patients with rheumatoid arthritis. Unlike common neck conditions, its main feature is instability of the first and second cervical vertebrae, the uppermost bones of the neck. If symptoms worsen, the spinal cord can be compressed and may lead to paralysis, so please consult a medical specialist.

2026-06-26

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

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

Spine Surgery

#spine surgery, #disc, #spinal stenosis, #disc herniation, #scoliosis, #spondylolisthesis, #spinal rehabilitation, #osteoporosis, #lumbar spine, #cervical spine, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet, #numbness in hands and feet, #arm numbness, #tingling leg, #weakness in the arms or legs, #difficulty moving one side of the body

Spinal conditions cause a variety of symptoms, including neck and back pain, numbness in the arms and legs, and gait disturbance. Typical conditions include herniated disc (disc herniation), spinal stenosis, and spondylolisthesis. Most spinal conditions are not life-threatening, so the principle is to start with conservative treatment such as drug therapy and physical therapy, and whether and when surgery is needed depends on each patient's condition. Please consult a medical specialist for an accurate diagnosis and direction of treatment.

2026-06-26

Stroke

#stroke, #dementia, #vascular dementia, #high blood pressure, #snoring, #weakness in the arms or legs, #difficulty moving one side of the body

Stroke is a medical emergency that occurs when a blood vessel in the brain becomes blocked or ruptures. A blocked blood vessel is called a cerebral infarction, and a ruptured one is called a cerebral hemorrhage. If symptoms appear, going to the emergency room immediately is the most important way to reduce aftereffects. Stroke is also closely related to dementia. The main symptom of stroke is the loss of a specific bodily function, such as paralysis of the arms or legs. The most important factor in treatment is the golden time (the critical time window for treatment), so please be sure to consult a medical specialist for an accurate diagnosis. If abnormal symptoms appear, call 119 (Korea's emergency number) or go to the emergency room immediately.

2026-06-26