Swollen feet occur when excess fluid builds up in the tissues, causing them to appear puffy, stretched, or enlarged. As described, “Swollen feet means your feet are enlarged or puffy because of fluid buildup in the tissues. In medicine this is called edema.” This condition can affect one or both feet and may be temporary or ongoing, depending on the cause.
There are several common reasons why feet swell. Standing or sitting for long periods can slow circulation and lead to fluid retention. Pregnancy often causes swelling due to hormonal changes and increased pressure on blood vessels. Hot weather can also make blood vessels expand, allowing fluid to leak into surrounding tissues. In addition, wearing tight shoes or sustaining an injury may contribute to swelling.
Other causes may be related to underlying health conditions. Poor circulation, heart disease, kidney problems, or liver disorders can all lead to fluid buildup in the lower extremities. In these cases, swelling may be more persistent and may require medical attention.
Symptoms include visible puffiness, tight or shiny skin, and a feeling of heaviness in the feet. Pressing on the swollen area may leave a dent for a few seconds, a sign known as pitting edema. Some people may also experience discomfort, stiffness, or mild pain, especially after long periods of inactivity.
Treatment depends on the cause, but simple steps can often help reduce swelling. Elevating the feet above heart level encourages fluid to drain away. Staying active improves circulation, while reducing salt intake can limit fluid retention. Wearing comfortable, supportive shoes and using compression socks may also provide relief.
Although mild swelling is usually not serious, it is important to seek medical care if it occurs suddenly, becomes severe, or is accompanied by symptoms such as pain, redness, or difficulty breathing. Early evaluation can help identify any underlying issues and prevent complications.