What is the cause of threatened abortion?

A brief analysis of the causes of threatened abortion can help pregnant women prevent miscarriage. Therefore, the causes of threatened abortion are something everyone should know. Threatened abortion is very common, but some women think that it will not cause harm to the body, so they do not pay attention to the care and prevention of miscarriage. This is wrong. What are the causes of threatened abortion?

1. Systemic diseases: High fever during systemic infection can induce uterine contraction and cause miscarriage; certain known pathogen infections such as Toxoplasma, herpes simplex, Mycoplasma hominis, Ureaplasma urealyticum, and cytomegalovirus are related to miscarriage; ischemic and hypoxic diseases such as heart failure, severe anemia, hypertension, chronic nephritis, and severe malnutrition in pregnant women can also lead to miscarriage.

2. Endocrine abnormalities such as luteal insufficiency, hypothyroidism, uncontrolled diabetes, etc.

3. Abnormal immune function.

4. Severe nutritional deficiencies.

5. Bad habits such as smoking, alcoholism, excessive coffee drinking or use of drugs such as heroin.

6. Adverse factors in the environment such as formaldehyde, benzene, lead and other harmful chemicals.

7. Uterine defects such as congenital uterine malformation, submucous uterine fibroids, intrauterine adhesions, etc.

8. Trauma such as abdominal squeezing or rapid impact, even surgery, excessive sexual intercourse, etc.

9. Emotional trauma such as excessive fear, sadness, anger, etc.

Early threatened abortion is a clinical manifestation that often presents as early pregnancy reaction after menopause, followed by a small amount of vaginal bleeding, which may come and go, or be continuous and red in color, and last for several days or weeks. There is no abdominal pain, or there is mild lower abdominal distension, back pain, and a feeling of heaviness in the lower abdomen. Now the number of patients with threatened abortion is increasing, so we should pay attention to find out the common causes of threatened abortion.