What is the reason for the pain in the left lower abdomen

In fact, the bloating and pain in the lower left abdomen mainly occurs among female friends. The onset of this disease is relatively acute. When it occurs, the patient will feel very strong pain, sometimes accompanied by symptoms of nausea and vomiting. At this time, you must take medicine according to your own reasons. If the pain is caused by menstruation, you must pay attention to keeping warm and not catching cold.

1. Acute lower abdominal pain has an acute onset and severe pain, often accompanied by nausea, vomiting, fever, etc.

(1) Lower abdominal pain[1] accompanied by vaginal bleeding: Whether there is a history of amenorrhea or not, it is often related to pathological pregnancy.

(2) Lower abdominal pain accompanied by fever: common in acute pelvic inflammatory disease, endometritis, fallopian tube-ovarian abscess or acute appendicitis cyst, etc., and can also be seen in red degeneration of uterine fibroids.

(3) Lower abdominal pain with adnexal masses: common causes include torsion or rupture of ovarian tumors or non-neoplastic ovarian cysts, and torsion of subserosal uterine myomas.

2. Chronic lower abdominal pain has a slow onset and is mostly dull or dull pain. It has a long course and is sometimes related to the menstrual cycle. Chronic lower abdominal pain that occurs periodically may include:

(1) Lower abdominal pain during menstruation: Progressively worsening lower abdominal pain during menstruation, sometimes accompanied by pain during sexual intercourse, which is due to endometriosis or adenomyosis. Lower abdominal pain before and after menstruation is also seen in diseases such as retroverted uterus, primary dysmenorrhea, cervical stenosis and pelvic inflammatory disease.

(2) Lower abdominal pain during menstruation: The pain is located on one side of the lower abdomen and often lasts for 3 to 4 days, and may be accompanied by a small amount of vaginal bleeding. This type of abdominal pain is called ovulation pain.

3. Dysmenorrhea: Those who experience abdominal pain during menstruation may have primary dysmenorrhea or endometriosis.

Lower abdominal pain refers to lower abdominal pain caused by organic or functional pelvic lesions. It is one of the common presenting symptoms in patients with gynecological infertility. The pain sensation in the lower abdomen is transmitted along the sympathetic and parasympathetic sensory nerves. Each genital organ has a different degree of sensitivity to pain. The perineum, vulva, and lower part of the vagina are very sensitive to pain, while the upper part of the vagina is relatively insensitive. The cervix is ​​also relatively insensitive, and dilation of the cervix can cause intense pain deep in the pelvis.

The uterine body is less sensitive than the isthmus, and uterine contractions are particularly painful when the uterine contents compress the nerve endings at the internal cervical os. The ovaries are insensitive to many stimuli but are very sensitive to squeezing during bimanual examination. When the ovarian parenchyma expands rapidly, it can cause pain. The fallopian tubes are very sensitive to cutting, crushing, pressing and touching.