Health Topics A-Z

Cataracts

Clouding of the lens inside the eye, causing gradually blurred or dimmed vision.

Celiac Disease

An autoimmune condition in which gluten damages the lining of the small intestine.

Cervical Screening

Testing for cervical cell changes and high-risk HPV in people with a cervix.

Cervical Screening and HPV

Testing for cervical cell changes and high-risk human papillomavirus, the virus responsible for almost all cervical cancer.

Child Mental Health

Emotional and behavioral difficulties in children and teens, and where to get help.

Child Safety at Home

Preventing the injuries that most often bring children to the hospital.

Childhood Activity

The physical activity recommended for children and teens.

Childhood Nutrition

Feeding children to support growth and build lifelong eating habits.

Childhood Rashes

The common rashes of childhood, and the one feature that changes everything.

Childhood Vaccinations

The routine immunization schedule that starts in infancy and continues through the teen years.

Children and Screens

How screen use fits alongside sleep, activity and family life.

Children's Hearing

Detecting hearing problems while speech and language are developing.

Children's Teeth

Looking after teeth from the first tooth through to the permanent teeth.

Children's Vision

Detecting and correcting vision problems while the visual system is still developing.

CHIP Coverage for Children

The Children's Health Insurance Program, which provides low-cost coverage for children in families that earn too much for Medicaid but cannot afford private insurance.

Choking

A blocked airway, and what to do in the first seconds.

Cholesterol

Fat-like substances carried in the blood by lipoproteins, reported as several fractions.

Choosing Footwear

Shoes that fit, support and do not cause problems.

Choosing the Right Care

Choosing the right service for the problem you have.

Chronic Kidney Disease

Long-term reduction in kidney function, graded by filtration rate and protein leak.

Chronic Primary Pain

Pain persisting beyond three months without an identifiable underlying cause that explains it.

Circulation and the Feet

Reduced blood supply to the feet, usually from peripheral artery disease.

Cirrhosis

Advanced scarring of the liver, in which functioning tissue is replaced by fibrous tissue.

Cognitive Activity

Mental engagement through learning, complex work, reading and social interaction.

Colds and Flu

Two different viral illnesses that share a season and very little else.

Colorectal Cancer

Cancer of the colon or rectum, one of the most common cancers in the US.

Colorectal Cancer Screening

Tests that look for colorectal cancer and precancerous polyps in people without symptoms, including home stool tests and colonoscopy.

Common Childhood Infections

The everyday viral illnesses of childhood and how long they last.

Communicating with Hearing Loss

Practical adjustments that make conversation work.

Computer Workstation Setup

Workstation setup and use for people who work regularly at computers.

Concussion

A mild traumatic brain injury that temporarily disrupts how the brain works.

Conjunctivitis

Inflammation of the membrane covering the white of the eye, from infection or allergy; often called pink eye.

Consent and Healthy Relationships

Freely given, informed and ongoing agreement to sexual activity.

Constipation

Infrequent, difficult or incomplete emptying of the bowel.

Contact Lens Safety

Wearing and caring for contact lenses without damaging the eye.

Continence

Bladder and bowel control, and the treatable conditions that affect it.

Contraception

The range of methods used to prevent pregnancy, hormonal and non-hormonal.

Contraception Choices

The available methods of preventing pregnancy and how they compare in practice.

Cooking for One

Shopping, cooking and storing food when there is only one person eating.

Cooking Methods

How the way you cook changes the fat, sodium and nutrient content of a meal.