Symptoms of Antiphospholipid Syndrome: Complete Clinical List
Antiphospholipid Syndrome symptoms include leg pain, headache, fatigue, swelling and 1 more. Learn which are most common, how they progress over time, and which warning signs require prompt evaluation.
Updated March 27, 2026
The main symptoms of Antiphospholipid Syndrome include leg pain, headache, fatigue, swelling and 1 more. Antiphospholipid syndrome is an autoimmune disorder causing abnormal blood clotting, leading to deep vein thrombosis, pulmonary embolism, strokes, and recurrent miscarriages. Lifelong anticoagulation is the primary treatment.
Clinical Context
Symptoms of Antiphospholipid Syndrome vary between individuals and may change over the course of the condition. Early recognition allows for timely diagnosis and treatment.
Clinical Pathway
Antiphospholipid Syndrome — Full Condition GuideCondition HubAntiphospholipid Syndrome — Differential DiagnosisDifferentialLeg pain — Symptom HubSymptomHeadache — Symptom HubSymptomFatigue — Symptom HubSymptomSwelling — Symptom HubSymptomDizziness — Symptom HubSymptomFrequently Asked Questions
Symptoms of Antiphospholipid Syndrome: Complete Clinical List?+
The main symptoms of Antiphospholipid Syndrome include leg pain, headache, fatigue, swelling and 1 more. Antiphospholipid syndrome is an autoimmune disorder causing abnormal blood clotting, leading to deep vein thrombosis, pulmonary embolism, strokes, and recurrent miscarriages. Lifelong anticoagulation is the primary treatment.
What are the first symptoms of Antiphospholipid Syndrome?+
Early symptoms often include leg pain and headache. These can be subtle at first.
How many symptoms of Antiphospholipid Syndrome are needed for diagnosis?+
Diagnosis is based on clinical criteria and does not require all symptoms. Your doctor considers full medical history and test results.
Can Antiphospholipid Syndrome be present without obvious symptoms?+
Yes — some presentations can be asymptomatic or mild, especially in early stages.
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