Diseases & Conditions Archive

Typical insect bites produce redness, itching, swelling, and pain. Signs of a more severe bug bite include hives, nausea, vomiting, fever, chills, drainage, rashes, blisters, numbness, or skin discoloration. People with any of these bug bite symptoms should see a doctor.

Ticks are an increasingly common source of illness, especially in the summer months. While these illnesses used to be common only in certain areas of the country, today more people across the United States are at risk. These conditions typically produce nonspecific symptoms such as fever, headache, and joint pain, and are treated using antibiotics.

A bird flu strain that began circulating in 2020 continues to evolve globally and locally within the United States. If you're wondering what this means, understanding the basics - what bird flu is, how it spreads, whether foods are safe, and prevention tips - can help.

About 25% of people have a common heart variant called a patent foramen ovale (PFO), a flaplike opening between the heart's upper chambers. In people with the condition, venous blood can leak across the heart from the right atrium to the left atrium, bypassing the lungs. If that blood contains a clot, it can travel directly to the arteries that send blood throughout the body. A stroke can occur if that clot lodges in an artery supplying the brain. In people prone to blood clots, a PFO raises the risk of stroke and dementia.

Diverticula-little pockets that develop in the lining of the colon-can become inflamed or infected and cause bloating, diarrhea, constipation, and pain in the lower left abdomen. The problem, called diverticulitis, might go away on its own, but first-time sufferers should report symptoms to the doctor right away. People with a history of diverticulitis can likely wait a day or two, but then call a doctor if symptoms don't improve. Treatment for diverticulitis ranges from rest, a clear liquid diet, and antibiotics to hospitalization or surgery.

Blood pressure problems might contribute to glaucoma, a condition that damages the optic nerves and causes vision loss. If blood pressure is too low, for example, blood flow to the optic nerves might decrease. That could deprive the optic nerves of oxygen and nutrients, resulting in nerve damage. High blood pressure might also reduce blood flow to the optic nerves, by damaging the blood vessels that supply the nerves. If glaucoma gets worse despite treatment, blood pressure should be considered as a factor.

Surgery is usually warranted when bunion pain becomes disabling, a skin ulcer develops, or it's necessary to prevent a bunion from dislocating the second toe. However, recovery can be long and painful, and there's no guarantee that bunions won't come back. Prior to surgery, it might help to use strategies that reduce bunion pain, such as adding cushioning to shoes, stretching shoes where a bunion rubs against them, getting roomier shoes or shoes made with stretchy fabrics, and using toe spacers.

A 2025 analysis suggested that GLP-1 medications used for diabetes and weight loss are associated with lower risks for an array of conditions, but that they increase risks for several others.

A 2025 study suggested that people with sedentary jobs are at higher risk of developing insomnia, which can persist for many years.