Diseases & Conditions Archive

Merkel cell cancer is a rare form of skin cancer that often spreads aggressively to other areas of the body. Here's what to know about it, including who is more likely to get it and how you can take steps to help prevent it.

A common form of eczema called atopic dermatitis can interfere with daily activities. There are a number of prescription creams available to ease this chronic skin condition, but some are more effective than others, and a recent study compared them.

The increase in obesity and type 2 diabetes among Americans has led to an increase in fatty liver disease. Weight loss and exercise are the mainstays of treatment.

Diabetes is a condition in which both high and low glucose levels are harmful to the body. In older individuals with multiple risk factors for hypoglycemia, the goal should be the best blood sugar control that can be achieved without putting the individual at risk for dangerously low blood sugar.

A 2023 analysis of nearly 300 randomized trials found that several types of exercise were effective in lowering resting blood pressure. Exercise types included aerobic exercise, high-intensity interval training, dynamic resistance training, isometric exercise training, and combined training (aerobic exercise plus one of the other types of exercise). People who are over age 50 and have not been exercising much should check with a doctor before beginning a regular exercise program, since some types of exercise may not be right for them.

Skin lumps or bumps occur on or just under the skin. Most are harmless. Aside from basal and squamous cell skin cancers, most other skin lumps are epidermal cysts or lipomas. Other growths include cherry angiomas, dermatofibromas, keloids, and very rarely cancerous tumors called sarcomas. People should seek medical attention for any lump appearing near lymph nodes, which sometimes signals cancer. A doctor should also evaluate growths that grow quickly, bleed, look infected, or feel painful. Most skin lumps or bumps don't need treatment.

Edema in the legs occurs when fluid backs up in the small vessels of the feet, ankles, or calves and pools in surrounding tissues. While most often not serious and easily managed, new or persistent edema requires medical evaluation.