Ask a doctor - What is the primary reason for swelling in the legs?

Q. What is the primary reason for swelling in the legs?

Doctor Answer is medically reviewed by SecondMedic medical review team.

Answered by Secondmedic Expert

Leg swelling can happen for various reasons, but one of the main culprits is poor circulation. When blood flow isn't moving efficiently through your legs, fluid can build up and cause swelling. This poor circulation might be due to sitting or standing for long periods, being overweight, or even certain medical conditions like heart failure or venous insufficiency.

Another common cause is injury or trauma. If you twist your ankle or suffer some other injury to your leg, swelling can occur as your body's natural response to the damage. Infections can also lead to swelling, as your body sends extra fluid to the affected area to fight off the infection.

Sometimes, medications can cause swelling as a side effect. Certain drugs like steroids, hormones, or even some antidepressants can lead to fluid retention, which can manifest as swelling in the legs.

It's essential to pay attention to leg swelling, especially if it's sudden or severe, as it can sometimes indicate a more serious underlying issue like a blood clot or kidney problem. If you're experiencing persistent or concerning swelling, it's best to consult with a healthcare professional for a proper evaluation and treatment plan.