Most babies continue to grow in weight and length this month. But you might notice that your baby isn’t growing quite as fast as in the first few months of life. Your baby will gain about 1 to 1½ ...

Every child feels lonely now and then. But kids can feel better when parents work with them to practice skills that help with bonding, belonging, and feeling close to others. These are called social ...

How Does the Brain Work? And How Does the Nervous System Work? How do you remember the way to your friend's house? Why do your eyes blink without you ever thinking about it? Where do dreams come from?

Herpetic gingivostomatitis (her-PEH-tik jin-jih-vo-sto-muh-TY-tiss) is a contagious mouth infection caused by herpes simplex virus type 1 (HSV1). It most often occurs in young children and is usually ...

Sexually transmitted diseases (STDs) are infections spread from person to person during sex (vaginal, oral, or anal) or close sexual contact. STDs are also called sexually transmitted infections, or ...

Pinworms are tiny worms that can cause an infection in the intestines. Pinworm infections affects millions of people each year, especially school-age kids If your child develops a pinworm infection, ...

We see and hear about hearts everywhere. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited. Now ...

How much do you know about your digestive system? Find out by taking this quiz!

Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by vertebrae, a set of ring-shaped bones. They're both cushioned by layers of ...

What Is an Umbilical Hernia? An umbilical hernia happens when part of a child's intestines bulges through the abdominal wall inside the belly button. It shows up as a bump under the belly button. The ...

A period is when blood comes out through a girl's vagina. It is a sign that she is getting close to the end of puberty. Puberty is when your body goes from looking like a kid's into looking more like ...

This is a general outline of the milestones on the road to reading success. Keep in mind that kids develop at different paces and spend varying amounts of time at each stage. If you have concerns, ...