Second trimester
Learning Center
COVID-19 vaccines for kids: What you need to know
Learn about the safety and effectiveness of COVID-19 vaccines for kids, the possible side effects, and the benefits of vaccination.
Anorexia nervosa
Anorexia is an eating disorder characterized by an abnormally low body weight, intense fear of gaining weight and a distorted perception of body weight.
Bee sting
Learn more about symptoms, treatment, self-care tips and prevention of bee stings, which in some people cause severe allergic reaction.
MCAD deficiency
This inherited genetic disorder prevents the breakdown of certain fats needed for energy, leading to dangerously low blood sugar levels if not treated.
Pap smear
Pap smear is often recommended for cervical cancer screening. Learn how it's done and what abnormal Pap test results might mean.
Epidermolysis bullosa
Learn about a rare inherited disease that often shows up in infancy and causes fragile, blistering skin on the palms and feet. Severe disease may be fatal.
Hepatitis B
This highly contagious virus can cause long-lasting problems if it goes untreated. Learn about the symptoms, treatment and prevention of this serious liver infection.
Raynaud's disease
Learn how this disease causes parts of the body, mainly fingers and toes, to feel cold and numb and possibly change colors from cold temperatures or stress.
Learning disorders: Know the signs, how to help
Here's how to find out what's going on if your child often has trouble with reading, writing or other skills.
Mayo Clinic Minute: Easing the itch of mosquito bites
Mosquito bites are a common summer nuisance. Learn the best way to stop yourself from scratching.
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