Hihy Health
Encyclopedia

Cellulitis

#cellulitis, #soft tissue infection, #bacterial infection, #skin infection, #antibiotics, #athlete's foot, #lymphangitis, #body swelling, #facial swelling, #leg swelling, #swelling in hands and feet

Cellulitis is an infection that occurs when bacteria invade the dermis (the middle layer of the skin) and the subcutaneous fat layer. It can cause the skin to become red and swollen, along with fever and pain. If you have symptoms, you should see a medical specialist promptly.

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

Cervical Cancer

#cervical cancer, #HPV, #human papillomavirus, #uterus, #gynecologic cancer, #HPV vaccine, #cervical cancer screening, #body swelling, #facial swelling, #leg swelling, #swelling in hands and feet, #numbness in hands and feet, #arm numbness, #tingling leg

Cervical cancer develops in the cervix, the lower part of the uterus that opens into the vagina. It is a cancer with a clearly identified cause and is preventable; regular screening and the HPV (human papillomavirus) vaccine can help reduce its occurrence. If you have symptoms that raise concern, or have not been screened, please consult a medical specialist.

2026-06-26

Cheilitis (Lip Inflammation)

#cheilitis, #lip inflammation, #lips, #scaling, #exfoliative cheilitis, #contact cheilitis, #actinic cheilitis, #angular cheilitis, #dryness, #winter

Cheilitis is an inflammatory condition of the lips. Symptoms include cracked lips, flaking skin, or soreness (maceration). Many people do not think of dry, chapped lips as a medical condition, but if symptoms recur or become severe, please consult a dermatologist.

2026-06-26

Chilblains

#Chilblains, #Cold-related injury, #Frostbite, #Cold exposure, #Blood vessels, #Fingers and toes, #Body swelling, #Face swelling, #Leg swelling, #Swollen hands and feet

Chilblains are a skin inflammation that develops after prolonged exposure to low temperatures of around 5–10°C (41–50°F) or damp, cold conditions. They are a milder form of cold-related injury than frostbite, but if symptoms are severe or keep recurring, please see a medical specialist.

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

Chronic Hepatitis B

#hepatitis B, #chronic hepatitis B, #cirrhosis, #liver cancer, #antiviral drugs, #vaccination, #vertical transmission, #lack of energy, #listlessness, #persistent tiredness, #loose stools, #watery diarrhea, #frequent bathroom visits

Hepatitis B is an infection caused by the hepatitis B virus. If chronic hepatitis B is not treated, it can progress to cirrhosis and liver cancer. People without antibodies should get vaccinated. If you have chronic hepatitis B, please have regular checkups and consult a medical specialist about treatment.

2026-06-26

Chronic Kidney Disease (CKD)

#chronic kidney disease, #chronic renal failure, #kidney, #renal, #proteinuria, #glomerular filtration rate, #diabetic nephropathy, #lack of energy, #listlessness, #persistent tiredness, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Chronic kidney disease (CKD) is a condition in which abnormalities in kidney function or structure persist for 3 months or longer. In the early stages there are often no particular symptoms, so the disease may go unnoticed and be discovered only after it has progressed considerably. People who have diabetes or high blood pressure, or who have a family history of kidney disease, need regular testing. If a health checkup reveals a kidney abnormality, please consult a medical specialist to confirm it.

2026-06-26

Chronic Renal Failure

#kidney transplantation, #chronic renal failure, #kidney, #end-stage renal disease, #hemodialysis, #immunosuppressants

The kidneys are important organs that filter waste products from the body and remove them in the urine. When a chronic disease has damaged the kidneys completely, a new kidney may need to be transplanted to sustain life. Lifelong careful management is needed even after transplantation, so please do not rely on this Health Encyclopedia alone; receive proper management through consultation with a transplant specialist.

2026-06-26

Cold and Hot Compresses

#hot compress, #cold compress, #arthritis, #muscle pain, #hot and cold therapy, #paraffin bath, #ice pack, #body swelling, #facial swelling, #leg swelling, #swollen hands and feet

Compresses are often used to relieve pain and loosen stiff joints. However, hot or cold compresses must be chosen appropriately depending on when the injury occurred and the person's condition, so it is safer to follow a medical specialist's diagnosis than to decide on your own.

2026-06-26

Cold Urticaria

#cold urticaria, #hives, #cold exposure, #allergy, #cold water, #winter, #headache, #severe headache, #migraine, #back-of-head pain, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation, #body swelling, #facial swelling, #leg swelling, #swelling of the hands and feet

Cold urticaria is a condition in which hives develop upon exposure to cold air, cold water, or ice. In severe cases, dangerous symptoms such as difficulty breathing can occur, so please consult a medical specialist.

2026-06-26

Comparing the Common Cold, Influenza (Flu), and COVID-19

#common cold, #flu, #COVID-19, #influenza, #respiratory infection, #comparison, #mask, #handwashing, #sore throat, #scratchy throat, #pain when swallowing, #feeling feverish, #body heat, #high fever, #low-grade fever, #body shaking, #feeling cold and shivering, #cold sensation, #dry cough, #persistent minor cough, #cough that will not stop, #stuffy nose, #clear runny nose, #yellow runny nose, #hand tremor, #body tremor

The common cold, influenza (flu), and COVID-19 are all respiratory infectious diseases caused by viruses, but the causative viruses and symptoms differ. It is often difficult to tell the three apart from symptoms alone, so if you have any abnormal symptoms, please consult a medical specialist.

2026-06-26

Croup

#croup, #barking cough, #difficulty breathing, #common cold, #airway swelling, #breath holding, #difficulty breathing, #shortness of breath, #choking sensation, #dry cough, #persistent cough, #cough that won't stop, #body swelling, #facial swelling, #leg swelling, #swelling of the hands and feet

Croup is an emergency condition in which a child suddenly has difficulty breathing. Symptoms typically worsen at night and can become life-threatening, so prompt evaluation by a pediatric specialist or emergency care is needed.

2026-06-26

Daily Life Management for Patients Receiving Chemotherapy

#anticancer therapy, #chemotherapy, #fever, #feeling feverish, #high fever, #low-grade fever, #lack of energy, #lethargy, #persistent fatigue, #loose stool, #watery diarrhea, #frequent bowel movements, #unable to pass stool, #difficulty passing stool, #hard stool, #numbness in hands and feet, #arm numbness, #tingling in legs

Daily life management strategies for patients receiving chemotherapy are as follows.

2026-07-13

Dementia Prevention

#dementia prevention, #three do's and three don'ts, #depression, #stress, #aerobic exercise

Dementia does not appear suddenly; it results from harmful changes that accumulate in the brain over a long period of time. Building good habits in daily life from a young age is the best way to help prevent it. Making an ongoing effort to protect one's own health is especially important. If you or a loved one notices signs of memory loss or other cognitive changes, please consult a medical specialist.

2026-06-26