Condition Library
Conditions starting with C
119 health topics beginning with the letter C.
- C. diff InfectionsC. diff or C. difficile is a bacterium that causes diarrhea. You are more likely to get C. diff if you take antibiotics or are an older adult.
- CaffeineMany people enjoy a cup of coffee or tea to give them a boost. But is it safe? Learn more about caffeine.
- CalciumYour body needs calcium for many reasons. Learn what foods are high in calcium and how much calcium you need in a healthy diet.
- Campylobacter InfectionsIf you have diarrhea, bloating, and vomiting, you may have a campylobacter infection. How do you get it? How can you treat it? Learn more.
- CancerIf you or someone you love has been diagnosed with cancer, learn about diagnosis, treatment, risk factors, coping and much more.
- Cancer Alternative TherapiesThere are options to consider when deciding about cancer treatment. Learn more about cancer alternative therapies that may help.
- Cancer ChemotherapyChemotherapy may help you fight the spread of cancer. Find out about the types of chemotherapy and side effects.
- Cancer ImmunotherapyImmunotherapy is a cancer treatment that helps your immune system fight cancer. Learn about the different types.
- Cancer in ChildrenYou will have a lot of questions if your child is diagnosed with cancer. Many cancers in children can be treated. Learn about childhood cancers.
- Cancer--Living with CancerLiving with cancer is not easy. It can take a physical and emotional toll on your health. Learn how to cope with cancer in your daily life.
- Canker SoresCanker sores (Aphthous ulcers) are painful sores inside of the mouth. They are non-cancerous but can cause viral infections. Read about the triggers.
- Carbohydrate Metabolism DisordersCarbs include sugar, starch, and fiber. Some disorders affect how your body uses these nutrients, causing health problems. Learn more.
- CarbohydratesCarbohydrates are one of the basic food groups. Learn how to incorporate carbohydrates into a healthy diet.
- Carbon Monoxide PoisoningCarbon monoxide is known as the silent killer. It is a deadly gas that has no color or smell. Protect yourself and your family by learning more.
- Carcinoid TumorsCarcinoid tumors can happen in the lungs or digestive tract. Learn about risk factors, tests, treatment, and more.
- Cardiac RehabilitationCardiac rehabilitation (rehab) is a program to help you get better after heart problems or heart surgery. Learn what it includes and how it can help.
- CardiomyopathyCardiomyopathy is a disease that causes the heart to become enlarged, thick, or stiff. Read about the different types, their symptoms, and treatments.
- Caregiver HealthCaregiving can be rewarding, but it may also be stressful and sometimes even overwhelming. Learn how to prevent or relieve caregiver stress.
- CaregiversAre you a caregiver? If so, you may have to help with cooking, paying bills, and more. Learn about caregiving and how to find support for yourself.
- Carotid Artery DiseaseIn carotid artery disease, a waxy substance (plaque) clogs the arteries that bring blood to your brain and head. Find out how it cause a stroke.
- Carpal Tunnel SyndromeIs the numbness and pain in your arm and wrist a passing cramp or carpal tunnel syndrome? Learn about carpal tunnel syndrome symptoms and treatment.
- Cartilage DisordersCartilage covers the ends of your bones. Sports injuries and other disorders can cause cartilage problems. Learn how to take care of your cartilage.
- Cat Scratch DiseaseIf you feel sick after a you have been scratched or bitten by a cat, you may have cat scratch disease, also called cat scratch fever. Find out more.
- CataractA cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. Learn about symptoms and surgery.
- Celiac DiseaseCoping with celiac disease can be challenging. Learn about gluten-free diets, signs and symptoms, tests, and more.
- CellulitisCellulitis is an infection of the skin and deep underlying tissues. The cause is usually a type of strep bacteria. Learn about symptoms and treatment.
- Cerebellar DisordersCerebellar disorders are problems with the cerebellum, an area of the brain that controls coordination and balance. Ataxias is one of these disorders.
- Cerebral PalsyCerebral palsy, CP happens when areas of the brain that control movement and posture do not develop correctly or get damaged. Treatment can improve.
- Cervical CancerCervical cancer starts in the cells of the cervix, which is the lower, narrow end of the uterus. Long-lasting HPV infection causes almost all cervical cancers.
- Cervical Cancer ScreeningCervical cancer is caused by human papillomavirus (HPV). Reduce your risk of cervical cancer by having regular screening tests, and getting vaccinated against HPV.
- Cervix DisordersThe cervix is the lower part of a woman's uterus. Read about problems that can affect the cervix, like cervicitis (inflammation) and cervical polyps.
- Cesarean DeliveryLearn about Cesarean delivery (C-section), surgery to deliver a baby through the mother's abdomen. It is done when a vaginal birth is not safe.
- Chagas DiseaseChagas disease, also called American trypanosomiasis, is a disease caused by a parasite. It is mainly spread by kissing bugs, which are common in Latin America. It is important to get early treatment.
- Charcot-Marie-Tooth DiseaseCharcot-Marie-Tooth disease, CMT affects your peripheral nerves. Interrupting messages to your brain about things around you, like touch.
- Chemical EmergenciesAre you prepared for a chemical emergency? Find out.
- Chest Injuries and DisordersYour chest is packed with vital organs, like the esophagus, lungs, and heart. Learn about the different types of chest injuries and chest disorders.
- Chest PainChest pain can be caused by a heart attack, but it can have other causes. Learn about what they are, and when you should get immediate medical help.
- Chiari MalformationChiari Malformation (CMs) is a congenital condition in which brain tissue extends to the spinal canal. Learn about the different types and symptoms.
- ChickenpoxChickenpox is a contagious disease caused by the varicella-zoster virus. It causes an itchy rash with blisters. Learn about vaccines and treatment.
- ChikungunyaMosquitoes carry the Chikungunya virus. Learn about Chikungunya prevention, symptoms, treatment, and more.
- Child AbuseChild abuse can have many forms. It can have long lasting emotional effects. Learn about child abuse.
- Child Behavior DisordersIs your child showing aggression, hostility, or other disruptive behaviors? Learn about childhood behavior disorders and how to help your child.
- Child Dental HealthHealthy teeth and gums are important to your child's overall health. Good dental habits and proper oral care can help prevent tooth decay and cavities.
- Child DevelopmentEver wonder what's "normal" for your child? Child development includes physical, intellectual, social, and emotional changes. Learn more.
- Child Mental HealthIt's important to recognize and treat mental illnesses in children early on. Learn about warning signs, tests, and therapies.
- Child NutritionWhat should be on your kid's plate? A healthy diet helps children grow and learn. Learn more about nutrition for children.
- Child SafetyWhat steps should you take to ensure your child's safety? Get specifics on safety for kids.
- Child Sexual AbuseSexual abuse is one form of child abuse. It includes a wide range of actions between a child and an adult or older child. Learn the facts.
- ChildbirthChildbirth is the process of having a baby. Learn about the 3 stages of labor, and how you can prepare, tell if you are in labor, and manage the pain.
- Childbirth ProblemsComplications may happen during childbirth including preterm labor, problems with the umbilical cord or position of the baby, and birth injuries.
- Childhood Brain TumorsChildhood brain tumors are abnormal growths inside the skull of children. Even benign tumors can be serious. Learn when a child should see a doctor.
- Childhood LeukemiaLeukemia is cancer of the white blood cells, it is the most common type of childhood cancer. Learn about the symptoms, and treatment options.
- Childhood VaccinesChildhood vaccines, or immunizations, protect your children from many serious or even deadly diseases. Learn why and when you should vaccinate your children.
- Children's HealthMost parents know the basics of keeping their child healthy, but what else do you need to know? Learn about issues related to your kid's health.
- ChiropracticChiropractic is a health care profession. Chiropractors perform manipulations to the spine or other parts of the body. Read more.
- Chlamydia InfectionsChlamydia is a common sexually transmitted disease contracted by men and women. Chlamydia usually does not have symptoms. Learn about tests and prevention.
- ChokingDo you know how to respond if you see someone choking? Learn how to respond with back blows, the Heimlich maneuver (abdominal thrusts), and CPR.
- CholeraCholera is a bacterial infection that causes diarrhea caused by bacteria usually found in contaminated water. Learn about symptoms and treatment.
- CholesterolYour body needs some cholesterol, but too much can raise your risk of heart disease. Know the types (HDL and LDL), and how to lower high cholesterol.
- Cholesterol Levels: What You Need to KnowHigh cholesterol levels can put you at risk of heart diseases. It's important to get regular cholesterol tests and make sure your levels are in a healthy range.
- Cholesterol MedicinesIf diet and exercise don't reduce your cholesterol levels enough, you may need to take medicine. Learn about the different types of cholesterol medicines.
- Choosing a Doctor or Health Care ServiceWe all want high-quality health care, but it's hard to know how to choose. Learn about specific things to consider when finding a doctor.
- Chronic BronchitisBronchitis is an inflammation of the airways that carry air to your lungs. Chronic bronchitis is a long-term condition. Discover symptoms and treatment.
- Chronic Kidney DiseaseIf your kidneys are damaged and can't filter blood easily, then you may suffer from chronic kidney disease (CKD). Read about the treatments available
- Chronic Lymphocytic LeukemiaChronic Lymphocytic Leukemia or CLL is cancer of the white blood cells, where abnormal cells are made. This makes it hard for the blood to do its work.
- Chronic Myeloid LeukemiaChronic myeloid leukemia (CML) is a cancer of the white blood cells. It usually affects older adults. Learn about symptoms, genetics, and treatment.
- Chronic PainChronic pain lasts longer than three months or the time in which you should have healed. It is not always curable, but treatments can help.
- CircumcisionCircumcision is the removal of the foreskin, the skin that covers the tip of the penis. Read about the medical benefits and risks to circumcision.
- CirrhosisCirrhosis is caused when scar tissue replaces healthy tissue in the liver because of chronic injury. Learn how cirrhosis is diagnosed and treated.
- Cleaning, Disinfecting, and SanitizingTo avoid becoming infected by germs from surfaces and objects, it is important to wash your hands often. It’s also important to regularly clean and disinfect surfaces and objects. Learn the difference
- Cleft Lip and PalateDuring early pregnancy stages your child may develop cleft lip or cleft palate. Find out when you should have surgery to fix the cleft lip and palate.
- Climate ChangeClimate change is more than global warming. It's major change in temperature, rainfall, snow, or wind patterns. Read how it can affect your health.
- Clinical TrialsDid you ever wonder how doctors find out if a treatment is effective? Clinical trials test how well new medical approaches work in people. Read more.
- CloningCloning is the process of creating an exact genetic replica of a cell, tissue or organism. Learn about the types and uses in medicine.
- Club DrugsClub drugs are group of psychoactive drugs popular at bars, night clubs, and raves. They include MDMA (Ecstasy), GHB, and others. Learn more.
- CocaineCocaine, also called crack cocaine, is a highly addictive stimulant. It can be snorted, injected, or smoked. Learn about health effects and treatment.
- Cochlear ImplantsA cochlear implant can help individuals who are severely hard of hearing or deaf. A cochlear implant does not restore normal hearing.
- Cold and Cough MedicinesThere are lots of different cold and cough medicines, and they do different things. Learn about different remedies and when you should take them.
- Cold SoresLearn about types of herpes simplex. Type 1 causes cold sores, fever blisters or oral herpes. Type 2 affects the genital area. Read about symptoms.
- Collapsed LungThere are two types of collapsed lung: pneumothorax (a total collapse) and atelectasis (partial collapse). Learn the symptoms, causes, and treatment.
- College HealthCollege can bring excitement, challenges, and new responsibility. Learn what steps students can take to stay healthy and safe in college.
- Colonic DiseasesDiseases of the large intestine can affect your colon's ability to work properly. See how diet, medicines, and in some cases surgery can help.
- Colonic PolypsColorectal polyps are extra clumps of tissue that grow in the colon. Some polyps can become cancerous but most are not. Details on several types here.
- ColonoscopyA colonoscopy is an exam of the colon and rectum using a tiny camera to search for polyps, cancer or other diseases. Follow these tips to prepare.
- Color BlindnessIf you have color blindness, you can't see the difference between certain colors. It is more common in men. Learn about genetics and how to adjust.
- Colorectal CancerColorectal cancer starts in the colon or rectum. It may not cause symptoms at first. Screening tests can help find it early, when treatment is most effective.
- ComaComa is a state of unconsciousness, where one is alive but cannot move or respond. Outcome depends on the cause, severity, and site of the damage.
- Common ColdCommon cold symptoms usually begin 2 or 3 days after infection and last 2 to 14 days. There is no cure for the common cold. Learn tips for relief.
- Common Infant and Newborn ProblemsIt is hard when your baby is sick, many problems are not serious. Learn about how to help your baby, and warning signs for more serious issues.
- Complementary and Integrative MedicineComplementary and Integrative Medicine, also called alternative medicine includes treatments that are not part of mainstream medicine. Read more.
- Complex Regional Pain SyndromeComplex regional pain syndrome, CRPS or Reflex Sympathetic Dystrophy, RSD are chronic pain conditions. They cause intense pain and can spread.
- Compulsive GamblingMany people enjoy gambling, but some lose control. If you think you might have a gambling addiction, talk to your health care provider for help.
- ConcussionConcussion, a minor injury to the brain due to a blow or hit to the head. Symptoms may not show up right away. Learn when to see your doctor.
- Congenital Heart DefectsCongenital heart defects, problems with the structure of the heart, are the most common type of birth defect. Learn about diagnosis and treatment.
- Connective Tissue DisordersThere are over 200 disorders that affect connective tissues. Examples include cellulitis, scars, and osteogenesis imperfecta. Learn more.
- ConstipationFeeling "backed-up" or like you need to "go" but just can't? Read some of the reasons why this could be happening and learn some prevention tips.
- COPDCOPD (chronic obstructive pulmonary disease) makes it hard for you to breathe. At first symptoms are mild, but usually become more severe. Learn more.
- Coping with Chronic IllnessChronic illness can cause stress, anxiety, and anger. It is important to seek help and regain control. Learn about coping with chronic illness.
- Coping with DisastersNo matter how well you prepared, you might feel dazed or numb after going through a disaster. Seek help if the reaction gets in the way of your life.
- Corneal DisordersThe cornea is a clear layer that covers the front of the eye. It helps the eye focus, and keeps out germs and dust. Read about diseases of the cornea.
- Corns and CallusesCorns and calluses are areas of thick skin, usually on the hands and feet. They happen because of repeated pressure or friction. Read about treatment.
- Coronary Artery Bypass SurgeryLearn about coronary artery bypass surgery (or graft, CABG). It uses blood vessels from other areas of the body to bypass narrowed heart arteries.
- Coronary Artery DiseaseCoronary artery disease (CAD) is the most common type of heart disease. It can lead to angina and heart attack. Read about symptoms and tests.
- CosmeticsCosmetics are products you use on your body to clean it, beautify it, or change how it looks. An example is makeup. Read about using cosmetics safely.
- CoughCoughing helps your body heal or protect itself. There are two types of coughs: acute and chronic. Learn the causes of chronic cough.
- COVID-19 (Coronavirus Disease 2019)COVID-19 (coronavirus disease 2019) is a respiratory disease caused by a virus. It can be very contagious. Learn about symptoms, prevention, and treatment.
- COVID-19 TestingLearn about the different types of tests for COVID-19, who needs a test, and how and where you can get a test.
- COVID-19 VaccinesLearn about the vaccines that have been approved and the vaccination program.
- CPRCPR (cardiopulmonary resuscitation) is an emergency technique used on someone whose heart or breathing has stopped. Learn it; you might save a life.
- Craniofacial AbnormalitiesCraniofacial abnormalities (or craniofacial anomalies) are birth defects of the face or head. A common example is cleft lip and palate. Read more.
- Creutzfeldt-Jakob DiseaseCreutzfeldt-Jakob disease (CJD) is a rare, degenerative brain disorder. CJD progresses rapidly and is fatal. Learn how to prevent CJD.
- Critical CareCritical care (also called intensive care) helps people with life-threatening injuries and illnesses. Learn what to expect and how to prepare.
- Crohn's DiseaseCrohn's Disease can cause inflammation in any area from the mouth to the anus. Read about medicines, surgery or dietary management to treat symptoms.
- CroupCroup symptoms include difficulty breathing, a barking cough, and a hoarse voice. Children are at the highest risk. Learn more about croup.
- CryptosporidiosisCryptosporidiosis or Crypto is an illness caused by a parasite that lives in soil, food and water. Learn the common symptoms and what you should do.
- CT ScansDoctors use CT scans (or CAT scans) to look for broken bones, cancers, blood clots, and more. Learn about the CT scan and what to expect during one.
- Cushing's SyndromeCushing's Syndrome (Hypercortisolism) is a rare hormonal disorder caused by over exposure to the hormone, Cortisol. Lab tests can show if you have it.
- Cystic FibrosisCystic fibrosis (CF) is an inherited disease of the mucus and sweat glands. The symptoms and severity of CF can vary. Get the facts.
- Cytomegalovirus InfectionsCytomegalovirus (CMV) is a virus found worldwide. Most people with CMV don't need treatment. Learn about who is at risk and how to prevent infection.
Source: MedlinePlus.gov, U.S. National Library of Medicine.