Menstrual cramps can be a real pain in the neck for many women, who are already irritable for a few days a month, and when combined with menstrual cramps, it can be really hard. Menstrual cramps not only affect women’s normal life and work, but also have a series of effects. Many women are worried about menstrual cramps and how they will affect their pregnancy. Primary dysmenorrhea, or functional dysmenorrhea, is a very common condition in young women and is not accompanied by obvious organic pelvic pathology. Primary dysmenorrhea is generally thought to be attributed to the following: uterine hypoplasia, endometrial tubular shedding, uterine flexion, somatic factors, allergic reactions on mental factors, etc. The pain is often present at or after the onset of menstruation and is mainly concentrated in the lower abdomen proper, with cramping pain. The incidence of primary dysmenorrhea decreases after the age of 30 years and this pain is normal and theoretically does not affect pregnancy. Secondary pain often has different symptoms, such as abdominal distension, lower abdominal cramping sensation, stool cramping sensation, painful intercourse, etc. Secondary pain is usually caused by organic lesions of the pelvic organs, and common causes include endometriosis, adenomyosis, uterine malformation, chronic pelvic inflammatory disease, etc. If the gynecological disease is serious it will affect pregnancy, but the factors affecting pregnancy are not singularly present, environmental factors, mental factors, whether the fallopian tubes are open, uterine factors, congenital genetic factors, etc. are all important aspects affecting pregnancy. Therefore, no matter what kind of dysmenorrhea you have, you need to go to the hospital for timely treatment. Although primary dysmenorrhea has no effect on pregnancy, it can seriously affect one’s quality of life, and some minor discomfort may be a precursor of certain diseases, so don’t be embarrassed and make your condition worse.