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  1. 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 …

  2. Priapism - Diagnosis & treatment - Mayo Clinic

    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. …

  3. Colon cancer screening: At what age can you stop? - Mayo Clinic

    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.

  4. 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: …

  5. 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 …

  6. 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.

  7. Craving and chewing ice: A sign of anemia? - Mayo Clinic

    Oct 21, 2023 · Craving and chewing ice (pagophagia) is often associated with iron deficiency with or without anemia.

  8. Constipation in children - Symptoms & causes - Mayo Clinic

    Apr 16, 2025 · Constipation in children is a common problem. A constipated child has infrequent bowel movements or hard, dry stools. Common causes include early toilet training and changes in diet. …

  9. 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 …

  10. Behcet disease - Diagnosis and treatment - Mayo Clinic

    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. …