Braxton-Hicks contractions

Braxton-Hicks Contractions

Braxton-Hicks contractions, often referred to as "practice contractions," are sporadic uterine contractions that occur during pregnancy. They are named after the English doctor John Braxton Hicks, who first described them in 1872. These contractions are generally considered a normal part of pregnancy and are not a sign of labor.

Physiology

Braxton-Hicks contractions are thought to be the body's way of preparing for the actual labor process. They are irregular in frequency and intensity, and unlike true labor contractions, they do not lead to cervical dilation. These contractions can start as early as the second trimester, but they are more commonly felt in the third trimester.

Characteristics

Braxton-Hicks contractions are typically:

• Irregular: They do not occur at regular intervals.
• Infrequent: They are less frequent than true labor contractions.
• Unpredictable: They can vary in length and intensity.
• Non-progressive: They do not increase in intensity or frequency over time.
• Painless or mildly uncomfortable: They are often described as a tightening sensation in the abdomen.

Causes

The exact cause of Braxton-Hicks contractions is not well understood, but they are believed to be a normal part of pregnancy. Factors that may trigger these contractions include:

• Dehydration: Lack of adequate fluid intake can lead to more frequent contractions.
• Physical activity: Exercise or physical exertion can sometimes trigger contractions.
• Sexual activity: Orgasm can lead to uterine contractions.
• A full bladder: A full bladder can sometimes stimulate contractions.

Differentiating from True Labor

It is important for pregnant individuals to distinguish between Braxton-Hicks contractions and true labor contractions. Some key differences include:

• Regularity: True labor contractions occur at regular intervals and become closer together over time.
• Intensity: True labor contractions increase in intensity and duration.
• Cervical changes: True labor leads to cervical dilation and effacement, while Braxton-Hicks do not.

Management

Braxton-Hicks contractions are generally harmless and do not require medical treatment. However, some strategies to alleviate discomfort include:

• Hydration: Drinking water can help reduce the frequency of contractions.
• Rest: Lying down or changing positions can help ease discomfort.
• Relaxation techniques: Breathing exercises or warm baths may provide relief.

When to Seek Medical Advice

While Braxton-Hicks contractions are normal, it is important to contact a healthcare provider if:

• Contractions become regular and painful.
• There is any vaginal bleeding or fluid leakage.
• There is a noticeable decrease in fetal movement.

Also see

• Pregnancy
• Labor (Childbirth)
• Preterm Labor
• Uterine Contraction