Why Is My Inner Ankle Swollen? Causes and Relief

Inner ankle swelling refers to the accumulation of fluid or inflammation in the tissues around the inner part of the ankle joint. While observing such swelling can be concerning, it is frequently a treatable condition stemming from various underlying factors. Understanding the potential causes can help in addressing the symptom appropriately.

Understanding Inner Ankle Swelling: Common Causes

Inner ankle swelling can arise from various issues, ranging from acute injuries to chronic medical conditions. Recognizing the specific origin is important for effective management. These causes generally fall into three categories: injuries, inflammatory conditions, and systemic health problems.

Injuries are a common cause of inner ankle swelling. A deltoid ligament sprain, affecting the strong, triangular-shaped ligament on the inner side of the ankle, often results from the foot rolling outward. This sprain leads to pain, tenderness, and swelling on the inner ankle, sometimes making it difficult to bear weight. Fractures of the medial malleolus, the bony protrusion on the inner ankle, also cause significant swelling and pain. Inflammation of nearby bursae, such as the subcutaneous bursa of the medial malleolus, can lead to inner ankle swelling.

Inflammatory conditions are another significant category. These include:

  • Posterior tibial tendonitis: Inflammation of the tendon supporting the arch of the foot, commonly causing pain and swelling along the inner ankle and foot.
  • Arthritis (e.g., Osteoarthritis, Rheumatoid Arthritis): Various forms can affect the ankle, causing pain, stiffness, and swelling. Osteoarthritis typically affects one joint, while RA often affects multiple joints symmetrically.
  • Gout: Characterized by uric acid crystal buildup, causes sudden, intense pain, redness, warmth, and significant swelling, often in a single joint like the ankle or big toe.
  • Bursitis: Inflammation of fluid-filled sacs that cushion joints, can occur in the ankle, leading to localized pain, swelling, and tenderness.

Systemic medical conditions can also cause inner ankle swelling. These include:

  • Venous insufficiency: Leg veins struggle to return blood to the heart, causing blood to pool and resulting in swelling in the lower extremities.
  • Lymphedema: Impaired lymphatic drainage leads to fluid accumulation and swelling.
  • Kidney disease: Hinders the body’s ability to excrete excess fluid and sodium, leading to widespread fluid retention, often noticeable as ankle swelling.
  • Heart failure: Reduced pumping efficiency causes blood to pool in the lower body, leading to swelling in the feet and ankles.
  • Deep vein thrombosis (DVT): A blood clot in a deep leg vein, causing sudden, often unilateral, swelling, pain, warmth, and skin discoloration.

When to Seek Professional Medical Advice

While some inner ankle swelling may resolve with self-care, certain signs indicate the need for professional medical evaluation. Recognizing these indicators can help prevent complications and ensure appropriate treatment.

Seek immediate medical care if inner ankle swelling is accompanied by sudden, severe pain or an inability to bear weight. Other concerning symptoms include swelling with fever, significant redness, increased warmth, or red streaks, which could signal an infection. Swelling that does not improve after a few days of home care, or swelling that occurred following an injury or fall, also warrants a medical visit.

If inner ankle swelling occurs alongside shortness of breath, chest pain, or dizziness, it requires immediate emergency attention as these may indicate serious systemic issues like a pulmonary embolism. Swelling that affects both ankles, especially if new or worsening, can point to broader medical conditions. Unilateral swelling, particularly if accompanied by pain, warmth, or discoloration, should raise suspicion for deep vein thrombosis (DVT) and necessitates urgent medical assessment. If pressing on the swollen area leaves a lasting indentation (pitting edema), or if there is a history of diabetes, kidney, or heart disease, consulting a healthcare professional is advisable.

Immediate Steps for Relief

For immediate relief of inner ankle swelling before a professional medical consultation, several self-care measures can be employed. These steps aim to reduce fluid accumulation, manage pain, and protect the affected area. Remember, these are temporary measures and not a substitute for a diagnosis or comprehensive treatment plan.

The R.I.C.E. protocol is recommended for initial management of acute injuries and swelling. Rest involves avoiding activities that cause pain or worsen the swelling, protecting the ankle from further stress. Ice should be applied to the swollen area for 15 to 20 minutes at a time, every two to four hours, particularly during the first 48 hours, using a thin cloth barrier. This helps reduce both swelling and pain.

Compression involves wrapping the ankle with an elastic bandage, ensuring it is snug but not overly tight to avoid restricting circulation. The wrap should start further from the body and gradually loosen as it moves upwards. Elevation means raising the swollen ankle above the level of the heart, especially when resting or sleeping, to facilitate fluid drainage. Over-the-counter pain relievers, such as NSAIDs like ibuprofen or naproxen, can help manage pain and reduce inflammation. Modifying activities to avoid movements that aggravate the swelling can provide further comfort.