Recurrent miscarriage is diagnosed after three or more consecutive early pregnancy losses and affects 1 to 2% of patients.
It requires detailed investigations to identify the specific cause which could vary from clotting disorders to genetic reasons. Often, however, no cause can be found when it is termed unexplained recurrent miscarriage. Testing may be appropriate after 2 miscarriages in specific cases. Treatment depends on any cause identified or may be non-specific.
The majority of patients should be reassured to know that they are more likely to have a successful pregnancy rather than a further miscarriage.