
Oppositional defiant disorder (ODD) - Symptoms and causes
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 …
Cervical dystonia - Symptoms & causes - Mayo Clinic
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 …
Animal bites: First aid - Mayo Clinic
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 …
History of COVID-19: Outbreaks and vaccine timeline
Learn about the COVID-19 pandemic as well as mRNA research, COVID-19 tests and treatments, and COVID-19 vaccine development and approval.
Lice - Symptoms and causes - Mayo Clinic
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: …
Diseases and Conditions that Start with N - Mayo Clinic
Browse a comprehensive list of medical diseases and conditions that start with the letter N from the experts at Mayo Clinic.
Hip pain - Mayo Clinic
Hip pain is a common complaint that can be caused by a wide variety of problems. The precise location of hip pain can provide clues about the underlying cause. Problems within the hip joint itself tend to …
Plantar warts - Diagnosis and treatment - Mayo Clinic
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 …
Low-phosphorus diet: Helpful for kidney disease? - Mayo Clinic
Jan 11, 2023 · If you have kidney disease, you may need to limit how much phosphorus you eat or drink each day. A dietitian can help you create a custom meal plan.
Influenza (flu) - Symptoms and causes - Mayo Clinic
Oct 22, 2025 · Learn more about the symptoms, causes and prevention of this potentially deadly viral infection that attacks the respiratory system.