Cleveland ClinicThe Cleveland Clinic outlines that miscarriage is the spontaneous loss of pregnancy before 20 weeks, often caused by genetic issues. Symptoms include vaginal bleeding, cramping, and loss of pregnancy symptoms. Risk factors include age, previous miscarriages, and certain health conditions. Diagnosis is through ultrasound or blood tests. Treatment depends on the type of miscarriage and may involve expectant management, medication, or a procedure like dilation and curettage (D&C). Emotional support is important for recovery.