Leg swelling can occur in any part of the legs, including the feet, ankles, calves and thighs. Leg swelling can result either from fluid buildup (fluid retention) or from inflammation in injured or diseased tissues or joints.

Many of the causes of leg swelling, such as an injury or prolonged standing or sitting, are common, easily identified and no reason for concern. Sometimes leg swelling can indicate a more serious disorder, such as heart disease or a blood clot.

Seek medical care right away if your legs swell for no apparent reason, especially if you have unexplained leg pain, difficulty breathing, chest pain or other warning signs of a blood clot in your lungs or a heart condition.

From Mayo Clinic to your inbox

Sign up for free and stay up to date on research advancements, health tips, current health topics, and expertise on managing health. Click here for an email preview.

To provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. If you are a Mayo Clinic patient, this could include protected health information. If we combine this information with your protected health information, we will treat all of that information as protected health information and will only use or disclose that information as set forth in our notice of privacy practices. You may opt-out of email communications at any time by clicking on the unsubscribe link in the e-mail.

March 05, 2022

See also

  1. ACL injury
  2. Acute kidney failure
  3. Anorexia nervosa
  4. Arteriovenous fistula
  5. Atrial septal defect (ASD)
  6. Baker cyst
  7. Behcet's disease
  8. Blood tests for heart disease
  9. Blood thinners: Can I still get blood clots?
  10. Jack Long — Live Long, Beat Strong to Find a Cure
  11. Mayo Clinic offers congenital heart care: Marcus' story
  12. Treating Pericarditis
  13. Valve problems in children with heart disease: What patients and families should know
  14. Can vitamins help prevent a heart attack?
  15. Cardiomyopathy
  16. Chelation therapy for heart disease: Does it work?
  17. Cirrhosis
  18. What is cirrhosis? A Mayo Clinic expert explains
  19. Cirrhosis FAQs
  20. What are congenital heart defects? An expert explains
  21. Congenital heart defects in children
  22. Congenital heart defects FAQs
  23. Daily aspirin therapy
  24. Deep vein thrombosis (DVT)
  25. Ebstein anomaly
  26. Fasting diet: Can it improve my heart health?
  27. Flu shots and heart disease
  28. Frequent sex: Does it protect against prostate cancer?
  29. Grass-fed beef
  30. Hamstring injury
  31. Hashimoto's disease
  32. Healthy eating: One step at a time
  33. Healthy Heart for Life!
  34. Heart disease
  35. Heart disease in women: Understand symptoms and risk factors
  36. Heart-healthy diet: 8 steps to prevent heart disease
  37. Knee pain
  38. Membranous nephropathy
  39. Menus for heart-healthy eating
  40. Myocarditis
  41. Neuroblastoma
  42. Nuts and your heart: Eating nuts for heart health
  43. Omega-3 in fish
  44. Omega-6 fatty acids
  45. Pericarditis
  46. Polypill: Does it treat heart disease?
  47. Posterior cruciate ligament injury
  48. Prostate Cancer
  49. Prostate cancer
  50. Prostate cancer: Does PSA level affect prognosis?
  51. What is prostate cancer? A Mayo Clinic expert explains
  52. Infographic: Prostate Cancer: Choline c-11
  53. Prostate cancer metastasis: Where does prostate cancer spread?
  54. Prostate cancer prevention
  55. Prostate cancer FAQs
  56. Protein: Heart-healthy sources
  57. Pulmonary embolism
  58. Put fish on the menu
  59. Red wine, antioxidants and resveratrol
  60. Heart disease prevention
  61. Swollen knee
  62. Varicose veins
  63. Ventricular septal defect (VSD)
  64. Endovenous thermal ablation
  65. Video: Heart and circulatory system
  66. Warfarin side effects
  67. Watch an interview with Fernando C Fervenza MD PhD
  68. Wilson's disease
  69. Infographic: Women and Heart Disease