First trimester
Learning Center
Erectile dysfunction
Understand what can cause the inability to get and keep an erection firm enough for sex and the possible treatment options.
Erectile dysfunction and diabetes: Take control today
Learn strategies to prevent or treat this common and frustrating potential complication of diabetes.
Erectile dysfunction: A sign of heart disease?
Erectile dysfunction and heart disease can be linked. Take steps to avoid both.
Erectile dysfunction: Nonoral treatments
Get the facts about shots, penis pumps and other ED treatments that don't involve taking medicine by mouth.
Erectile dysfunction: Viagra and other oral medications
Get the facts on medicines that are taken by mouth for ED.
External beam radiation for prostate cancer
Learn about the risks and results of this procedure, which is used to deliver radiation therapy for prostate cancer.
Facial fillers for wrinkles
Find out more about facial injections, also called soft tissue fillers, that can temporarily smooth wrinkles.
Fetal development: The 1st trimester
Fetal development begins before you even know you're pregnant. Here's what happens early on.
Frequent sex: Does it protect against prostate cancer?
Some studies have suggested that frequent ejaculation may reduce the risk of prostate cancer. But other research hasn't supported this idea.
Gastrointestinal stromal tumor (GIST)
Learn about this type of cancer that usually happens in the stomach or small intestine. Treatments often include surgery and targeted therapy.
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