Braxton Hicks contractions, often called “practice contractions” or “false labor,” are a normal part of pregnancy. These intermittent uterine contractions prepare the body for childbirth by toning the uterine muscle. While they can cause some discomfort, they do not indicate that labor has begun or is imminent, serving as a physiological rehearsal for the main event.
Understanding Braxton Hicks Contractions
Braxton Hicks contractions typically manifest as a tightening or hardening sensation across the abdomen. Many individuals describe this feeling as the uterus becoming very firm, similar to a “tense basketball.” While generally not painful, they can be uncomfortable, sometimes resembling mild menstrual cramps or a strong pressure.
Braxton Hicks contractions are irregular; they do not follow a consistent pattern in frequency or intensity. Unlike true labor contractions, which become progressively stronger, longer, and closer together, Braxton Hicks contractions remain unpredictable. They often subside with changes in activity, such as walking or resting, or with hydration, which further distinguishes them from the contractions of active labor.
These practice contractions primarily affect the front of the abdomen and do not cause the cervix to dilate or efface. True labor contractions, in contrast, are designed to open the cervix and may be felt more broadly, often starting in the back and wrapping around to the front.
Typical Duration and Occurrence
Braxton Hicks contractions can begin quite early in pregnancy, sometimes as early as six weeks gestation, though they are usually not felt until the second or third trimester. They become more noticeable and frequent as pregnancy advances, particularly in the third trimester. Their occurrence can vary widely among individuals, with some experiencing them often and others not at all.
Each individual Braxton Hicks contraction typically lasts between 30 seconds and two minutes. The frequency can range from just a few times a day to several times an hour, and this can be a normal pattern. They may become more frequent and sometimes more intense as the due date approaches, even appearing somewhat rhythmic in the weeks leading up to true labor.
These contractions can continue intermittently throughout the remainder of the pregnancy until true labor begins. Their presence does not mean labor is about to start immediately. Remaining hydrated and changing positions can often help to alleviate their sensation.
When to Seek Medical Advice
While Braxton Hicks contractions are a normal part of pregnancy, certain signs warrant contacting a healthcare provider. It is important to seek medical advice if contractions become regular, increase in strength, or occur more closely together, especially if they do not subside with rest or hydration. These changes could indicate the onset of true labor.
Other concerning symptoms that require immediate medical attention include any vaginal bleeding or spotting, a gush or continuous trickle of fluid from the vagina, or a noticeable change in vaginal discharge. Pelvic pressure, a dull backache that does not go away, or menstrual-like cramps that persist can also be signs of preterm labor if before 37 weeks. Additionally, a decrease in the baby’s movement should always prompt a call to a healthcare professional. Always consult a doctor or midwife with any concerns about contractions or other pregnancy symptoms.