Bleeding during early pregnancy lasts for 1 month

The early stage of pregnancy is the most critical period of the entire pregnancy. If you do not pay attention to your body at this time, it is easy to cause threatened abortion. Especially when you find that you have vaginal bleeding for a month, you must go to the hospital for a detailed physical examination. In fact, this already indicates that there is a problem of threatened abortion. If it is not handled properly, it will cause miscarriage or fetal growth retardation.

Threatened abortion refers to a small amount of vaginal bleeding before 28 weeks of pregnancy, followed by paroxysmal lower abdominal pain or back pain. Pelvic examination shows that the cervix is ​​not dilated, the fetal membranes are intact, no products of pregnancy are expelled, and the size of the uterus is consistent with the gestational age. If symptoms worsen, miscarriage may become inevitable.

Termination of pregnancy before 28 weeks is called miscarriage. If the pregnancy ends naturally before 12 weeks, it is called early miscarriage, and if the pregnancy ends naturally between 13 and 27 weeks, it is called late miscarriage. According to statistics from different regions, different classes and different ages, the incidence of spontaneous abortion is between 15% and 40%. About 75% occur before 16 weeks of pregnancy, and 62% occur before 12 weeks of pregnancy.

Abortion goes through a series of processes from its beginning to its end. According to its different stages, it can be given different diagnostic names, namely: threatened abortion, inevitable abortion, incomplete abortion, complete abortion, and missed abortion.

1. Chromosomal abnormalities

Chromosomal abnormalities are the main cause of miscarriage. Chromosome abnormalities include two categories: quantitative abnormalities and structural abnormalities. Studies have shown that early spontaneous abortion has

50% to 60% of pregnancies have chromosomal abnormalities. If one of the couple has a chromosomal abnormality, it can be passed on to the offspring and may cause miscarriage or recurrent miscarriage.

2. Maternal factors

(1) Systemic diseases: High fever during systemic infection can induce uterine contractions and cause miscarriage. Infections with certain known pathogens such as Toxoplasma, herpes simplex, Mycoplasma hominis, Ureaplasma urealyticum, and cytomegalovirus are associated with 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 compression or rapid impact, even surgery, excessive sexual intercourse, etc.

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