Hypothyroidism is a disease of thyroid hormone deficiency.
The most common cause of hypothyroidism worldwide is insufficient intake of iodine, a mineral found in iodized salt and some foods (such as seafood and dairy) that is needed for production of thyroid hormones. In the US and other...
Ovarian cancer is a malignancy of the ovary, the female reproductive organ that produces eggs.
How Common Is Ovarian Cancer?
Among women worldwide, ovarian cancer is the eighth most common malignancy and cause of cancer death. In 2022, ovarian cancer was diagnosed in about 325 000...
What Is Breast Density and How Common Are Dense Breasts?
Breast density refers to the amount of dense tissue (like glands and fibrous tissue) you have compared to fatty tissue in your breasts. Dense breasts are very common. About half of all women have them.
Why Does Breast Density...
This JAMA Pediatrics Patient Page describes the symptoms and treatment for testicular torsion in boys.
Diverticulitis involves inflammation of outpouchings of the intestinal wall, a condition known as diverticulosis.
Risk factors for diverticulosis include being older than 65 years, obesity (body mass index [BMI] of 30 or more), high blood pressure, type 2 diabetes, certain medications (...
This JAMA Pediatrics Patient Page describes respiratory syncytial virus (RSV) in children and how to prevent its spread.
This JAMA Pediatrics Patient Page discusses the most common causes of poisoning in children and safety tips to prevent poisoning.
What Is the Pneumococcal Pneumonia Vaccine?
The pneumococcal vaccine protects against infections from a type of bacteria called pneumococcus. Pneumococcus is a common cause of pneumonia (a lung infection), as well as other serious infections. The vaccine prepares your immune system to...
This JAMA Pediatrics Patient Page describes what parents should consider in deciding whether to have their child screened for high lipid levels.
This JAMA Internal Medicine Patient Page describes dense breasts and whether they might lead to higher risk for breast cancer.
