Read below about swelling in one lower leg, including causes and common questions. Or get a personalized analysis of your swelling in one lower leg from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

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A.I. Health Assistant Causes for Swelling in One Lower Leg

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced swelling in one lower leg. This list does not constitute medical advice.

  1. 1.Deep Vein Thrombosis

    Deep vein thrombosis (DVT) is a blood clot that forms in a vein deep in the body. Most deep vein clots occur in the lower leg or thigh.

    Curable with medication or surgery but may recur.

    Rarity:
    Uncommon
    Top Symptoms:
    fever, thigh pain, upper leg swelling, calf pain, butt pain
    Urgency:
    Hospital emergency room
  2. 2.Ankle Sprain

    Ankle ligaments, which connect bones to one another, stabilize the ankle joint. A sprain is an injury to the ligaments caused by a twisting motion of the joint.

    An uncomplicated ankle sprain should improve in 3-6 weeks.

    Rarity:
    Common
    Top Symptoms:
    pain in one ankle, ankle pain from an injury, swollen ankle, bruised ankle, ankle twisting
    Symptoms that always occur with ankle sprain:
    pain in one ankle, ankle pain from an injury
    Urgency:
    Phone call or in-person visit
  3. 3.Shin Bruise

    A bruise is the damage of the blood vessels that return blood to the heart (the capillaries and veins), which causes pooling of the blood. This explains the blue/purple color of most bruises. Bruises of the shin are common given the location of the shin.

    Bruises will begin to heal over the course of a week

    Rarity:
    Uncommon
    Top Symptoms:
    shin pain from an injury, shin injury, pain in one shin, shin swelling, shin bruise
    Symptoms that always occur with shin bruise:
    shin injury, shin pain from an injury
    Urgency:
    Self-treatment
  4. 4.Compartment Syndrome

    Compartment syndrome is a serious condition that involves increased pressure in a muscle compartment. It can lead to muscle and nerve damage and problems with blood flow.

    Prognosis is highly variable after surgery and depends on how rapidly you are treated.

    Rarity:
    Rare
    Top Symptoms:
    arm numbness, hand numbness, foot numbness, pain in one leg, thigh numbness
    Urgency:
    Hospital emergency room
  5. 5.Jones Fracture (Broken Foot)

    A Jones Fracture is a fracture of a bone on the outside of the foot (called the fifth metatarsal). A Jones fracture can be either a stress fracture (a tiny hairline break that develops with time), or a sudden break due to trauma. This can result in pain, swelling, and tenderness on the outside of the foot.

    6-8 weeks healing time with cast or splint.

    Rarity:
    Rare
    Top Symptoms:
    difficulty walking, constant foot pain, pain in one foot, foot bruise, foot injury
    Symptoms that always occur with jones fracture (broken foot):
    foot pain from an injury, pain when touching the foot, constant foot pain, pain in the front half of the foot, pain in the outside of the foot
    Urgency:
    In-person visit

    Swelling in One Lower Leg Checker

    Take a quiz to find out why you’re having swelling in one lower leg.

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  6. 6.Calcaneus Fracture

    The calcaneus (heel bone) can be fractured during high-energy collision, such as a fall from height or a motor vehicle crash. Heel bone fractures are often severe, and may result in long-term problems.

    6-8 weeks for the bone to completely heal (for an uncomplicated fracture).

    Rarity:
    Rare
    Top Symptoms:
    swollen ankle, swelling of both feet, severe foot pain, pain in both feet, swelling of one foot
    Symptoms that always occur with calcaneus fracture:
    inability to bear weight immediately after injury, foot pain from an injury, severe foot pain
    Urgency:
    Hospital emergency room
  7. 7.Fracture of the Talus

    A talus fracture is a break in one of the bones in the ankle called the "talus." This type of injury oftens occurs during a high-energy event, such as a car accident or fall.

    Recovery may take up to 3 months.

    Rarity:
    Ultra rare
    Top Symptoms:
    pain in one foot, swollen ankle, severe foot pain, pain in one ankle, ankle pain from an injury
    Symptoms that always occur with fracture of the talus:
    pain in one ankle, ankle pain from an injury
    Urgency:
    Hospital emergency room
  8. 8.Stress Fracture of the Foot (Marching Fracture)

    A "March" stress fracture of the foot is named because it's sometimes linked to soldiers marching for a long time. This foot fracture happens because of prolonged stress or weight-bearing.

    6-12 weeks with treatment

    Rarity:
    Rare
    Top Symptoms:
    constant foot pain, foot pain from overuse, pain in one foot, pain when touching the foot, pain in the top of the foot
    Symptoms that always occur with stress fracture of the foot (marching fracture):
    foot pain from overuse, constant foot pain
    Urgency:
    Primary care doctor
  9. 9.Repetitive Strain Injury of the Calf

    Repetitive strain injury of the calf is caused by consistent repetitive use.

    Duplicate: Resolves with rest

    Rarity:
    Uncommon
    Top Symptoms:
    lower leg numbness, calf pain from overuse
    Symptoms that always occur with repetitive strain injury of the calf:
    calf pain from overuse
    Symptoms that never occur with repetitive strain injury of the calf:
    recent calf injury, severe calf pain
    Urgency:
    Self-treatment
  10. 10.Calf Strain

    A strain, commonly called a "pulled muscle," is when a muscle becomes overstretched, and microscopic tears occur. A calf strain happens when one of the muscles on the back of the lower leg is pulled.

    With proper medical attention, this condition should completely resolve.

    Rarity:
    Common
    Top Symptoms:
    pain in one calf, moderate calf pain, calf pain, sports injury, soccer injury
    Symptoms that always occur with calf strain:
    pain in one calf
    Urgency:
    Self-treatment

Questions Your Doctor May Ask About Swelling in One Lower Leg

  • Q.Have you ever been diagnosed with diabetes?
  • Q.Are you having any difficulty walking?
  • Q.What is your body mass?
  • Q.Do you have high blood pressure?

If you've answered yes to one or more of these questions, try our swelling in one lower leg symptom checker to find out more.

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Swelling in One Lower Leg Symptom Checker Statistics

  • People who have experienced swelling in one lower leg have also experienced:

    • 19% Shin Pain
    • 7% Pain in One Shin
    • 5% Moderate Shin Pain
  • People who have experienced swelling in one lower leg had symptoms persist for:

    • 29% Over a Month
    • 28% Less Than a Week
    • 22% Less Than a Day
  • People who have experienced swelling in one lower leg were most often matched with:

    • 66% Deep Vein Thrombosis
    • 22% Ankle Sprain
    • 11% Shin Bruise
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

A.I. Health Assistant

Take a quiz to find out why you’re having swelling in one lower leg

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