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Breast Pain (Mastalgia) What is mastalgia? Mastalgia is breast pain. There are 2 main types of mastalgia: Cyclical breast pain. The pain is linked to menstrual periods. Noncyclic breast pain. The pain may come from the breast. Or it may come from somewhere else, such as nearby

How Were the COVID-19 Vaccines Made So Fast? Vaccines for COVID-19 are now widely available. In the past, it’s taken many years to create a vaccine that’s ready for public use. But over decades of creating vaccines, research groups and public health agencies have been making the

Cholesterol in the Blood Facts about cholesterol Cholesterol is a fat-like, waxy substance that can be found in all parts of your body. It helps your body make cell membranes, many hormones, and vitamin D. The cholesterol in your blood comes from 2 sources: the foods you eat and

Headaches in Early Pregnancy Nearly everyone has headaches sometimes. But having a headache in pregnancy is not fun. And managing headaches is even more tricky in the first trimester. This is a time when you should stay away from many medicines. Whether your headache is from

Nipple Problems and Discharge What are some common nipple problems? Nipple conditions are a common noncancer (benign) breast condition that affect many people assigned female at birth. Some problems are related to lactation. Others are not. Like all breast conditions, any nipple

Insect Stings and Allergic Reactions in Children Avoiding insect stings may not always be possible. But it's important to know how to respond if your child has an allergic reaction from an insect sting. This may give you more peace of mind if there is an emergency. Insect stings

Attention-Deficit / Hyperactivity Disorder (ADHD) in Children, Adolescents and Teens What is ADHD? ADHD, also called attention-deficit disorder, is a behavior disorder, usually first diagnosed in childhood, that is characterized by inattention, impulsivity, and, in some cases

Introduction to Menopause What is menopause? When a person permanently stops having menstrual periods, this is called menopause. This means they can no longer get pregnant. Many doctors use the term menopause to refer to the period of time when hormone levels start to change

Anorexia Nervosa in Adolescents and Teens What is anorexia nervosa? Anorexia nervosa (AN), a form of self-starvation, is an eating disorder characterized by a distorted body image that leads to restricted eating and other behavior that prevents a person from gaining weight

Differences of Sex Development (DSD) When a child's sex is not clear at birth, the child has atypical genitalia (ambiguous genitalia). This means that the genitals don't seem to be clearly male or female. You may hear these differences called "DSDs," or sometimes "disorders of