Lupus anticoagulant is a specific immunoglobulin that prolongs the time it takes blood to clot but does not produce a bleeding disorder. In some people it is associated with an increased risk of blood clots and may be the cause of recurrent spontaneous abortions. If a secondary disorder such as thrombocytopenia is present, bleeding will probably occur.
Risk factors are lupus erythematosus and recent use of phenothiazine medication.
Awareness of risk factors may allow early diagnosis. Prevention may not be possible. Therapy with prednisone may reduce spontaneous abortion . The outcome is usually good. Call your health care provider if persistent or frequent bleeding occurs.