Second trimester
Learning Center
Guide to different tick species and the diseases they carry
Learn about different tick species and some of the diseases they may carry.
Fetal development: The 2nd trimester
Fetal development progresses rapidly in the second trimester. Check out the weekly changes.
COVID-19 vs. flu: Similarities and differences
Find out the similarities and differences between coronavirus disease 2019 (COVID-19) and the flu (influenza) and learn about ways to prevent getting these diseases.
Vagina: What's typical, what's not
Vaginal health is important. Use this information to protect your vaginal health and spot potential problems.
Mental illness in children: Know the signs
It can be hard to tell the difference between typical behavior and symptoms of mental illness in children. Find out what to look for and when to act.
COVID-19, cold, allergies and the flu: What are the differences?
Knowing if you have COVID-19, a cold, the flu or seasonal allergies isn't easy. Find out about the differences between these illnesses.
Breast lump or breast changes: Early evaluation is essential
Find out how a breast lump or breast change is evaluated for breast cancer.
Diabetic neuropathy types: Symptoms tell the story
Depending on which type of this condition you have, certain parts of the body may be affected. That can cause symptoms to vary.
How to tell if a loved one is abusing opioids
Anyone using opioids is at risk of misusing these medicines. Don't ignore signs of harmful or illegal use. Taking action could save a loved one's life.
Spitting up in babies: What's normal, what's not
Spitting up in babies is common — and usually nothing to worry about.
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