Aug 31, 2021 · If you have an erection lasting more than four hours, you need emergency care. The emergency room doctor will determine whether you have ischemic priapism or nonischemic priapism. …

Learn about the COVID-19 pandemic as well as mRNA research, COVID-19 tests and treatments, and COVID-19 vaccine development and approval.

Oct 14, 2025 · Lice are tiny, wingless insects that feed on human blood. Lice spread from person to person through close contact and by sharing clothes and other items. There are three types of lice: …

Dec 6, 2023 · Some groups recommend people over 75 may consider stopping colon cancer screening. Not everyone agrees. Learn about your colon cancer screening options.

Jan 4, 2023 · Symptoms Sometimes it's difficult to recognize the difference between a strong-willed or emotional child and one with oppositional defiant disorder. It's common for children to show …

Apr 25, 2025 · Also, a diagnosis of Behcet disease needs at least two other symptoms, such as: Genital sores that keep coming back. Swelling and irritation, called inflammation, of the eye. Skin sores. …

Jul 23, 2025 · Treatment for a pinworm infection involves taking anti-parasite medicine that helps kill the worms. Your healthcare professional may recommend that you and any other people in your home …

May 10, 2024 · Animal bites might be caused by pets — such as cats, dogs, hamsters and turtles. Or bites may be from farm animals or wild animals. The type of care needed depends on how deep the …

Sep 3, 2021 · Cervical dystonia, also called spasmodic torticollis, is a painful condition in which your neck muscles contract involuntarily, causing your head to twist or turn to one side. Cervical dystonia …

Feb 7, 2024 · Treatment Most plantar warts are harmless and go away without treatment, though it may take a year or two in children, and even longer in adults. If you want to get rid of warts sooner, and …