Why lower back hurts during pregnancy?

If a sore lower back during pregnancy, the reasons are not always associated with pathology. Pregnancy is a natural state for the female body. And aching back during this period because the body is "reconstructed" in preparation for the changes taking place.

Causes of pain

Begins to experience back pain during pregnancy at different gestational ages. It is believed that in the first half of pregnancy the body is not subjected to increased loads. This is not true. About 30% of women come with complaints of aching back, even in the first trimester. However, most of the women lower back pain during pregnancy disturbed closer to the twentieth week. Often it is not easy to answer why back pain during pregnancy. Lower back pain in pregnant women is sometimes the consequence of direct obstetric causes, and may be an independent pathology. Obstetric causes of back pain that occur due to normal or pathological course of pregnancy.



Can hurt the lower back in a normal pregnancy? Yes, and this is the most common reason why pull back at pregnant. In many cases, the pregnancy leads to the fact that expectant mothers ' aches lower back. The cause of the pain becomes a rapid increase of the uterus, and the tension of its ligaments. These feelings are so common that are seen as another indication that the woman was pregnant.

  • Hormones and metabolic processes

In the waiting period, the child the woman have to deal with the sudden change in hormonal levels. Is increased, the production of estrogen, progesterone and other hormones are responsible for the proper course of pregnancy. Common reason for that sore lower back, is relaxin. This hormone helps the ligaments and tendons become more elastic, softens them. Relaxin is necessary in order to subsequently facilitate the emergence of the baby.

Necessary for the formation of the fruit elements are taken from the mother's body. Therefore, when there is insufficient replenishment "of stocks," bone women can receive essential vitamins and minerals, particularly calcium and phosphorus. As a result, there is a weakening of the pelvic bones and spine that can cause back pain in pregnant women.

  • The increased pressure on the pelvis and spine

The most "safe" reason why pregnant women have back pain is the growth of the fetus. The baby grows, increased pressure on the sacrum of the mother, which leads to pain in the lumbar region. Also, it is physiological reason for why the back pain is increasing weight leading to increased pressure on the lower back. The center of gravity changes, there is a deflection in the lumbar spine. Muscles get excess load leading to the onset of pain.

To the emergence of lower back pain in pregnant women often results in long standing. Uterus puts pressure on the nerves and blood vessels that surround the spine. This hurts below the waist, starting in the third trimester. Give pain in the legs, worse during exercise.

In the later stages of pregnancy lower back pain can occur as a result of the pressure of the fetal head on the pelvic bone. This is accompanied by the appearance of the high tone of the uterus. Then pain around 38 weeks. If a sore lower back during pregnancy for this reason, do not worry. Such feelings – a completely natural phenomenon.

  • Fight

A few weeks before childbirth expectant mother may feel contractions Braxton-Hicks. Braxton Hicks contractions prepare the body for subsequent delivery. In this case, in addition to pain, radiating to the lumbar region, there is a feeling of "solid" of the uterus, difficult to breathe, there are nagging pains in the abdomen. Then these symptoms disappear. And after a short time the stomach and back begin to ache again. Such feelings are normal, but still require attention. Sometimes they are difficult to distinguish from the real delivery started. If contractions become frequent, repeated at equal intervals of time, accompanied by discharge from the genital tract, should not delay the trip to the hospital.

At pathologies


If during pregnancy back pain accompanied by discharge and cramping pain in the uterus, such as doctors seen as the threat of spontaneous abortion or premature birth.

It is urgently needed to see a gynecologist. In some cases, pulls the lower back during pregnancy due to the aggravation of existing disease or the appearance of new pathologies. Pregnancy is accompanied by the natural immune suppression. Such a mechanism is necessary to avoid rejection of the fetus by the maternal organism as a foreign component. The result is the vulnerability of women at this time. It happens that the woman does not even know about existing pathologies, have not yet become pregnant. During pregnancy low back pain may indicate a quite serious disease. And if the gynecologist to rule out obstetric causes of distress, you should visit other physicians, namely a neurologist, a urologist or nephrologist and surgeon.

  • Kidney disease

Kidney disease are the reason why pregnancy sore lower back. Hormonal changes the tone of the ureters, there is a stagnation of urine leading to the development of infectious processes. Common complication of pregnancy is pyelonephritis. Occur aching pain on one side of the back, frequent urination, cramps, the temperature rises to high values. The urine generally becomes cloudy.

If lower back pain during pregnancy is expressed clearly, it is difficult to find a position in which the pain is diminished, impeding the flow of urine, an admixture of blood, perhaps that of renal colic. These symptoms are an indication for immediate hospitalization.

Diagnosed the doctor based on the ultrasound and laboratory blood and urine tests. Treatment is with antibiotics, antispasmodic and analgesic drugs and is mandatory. The disease can lead to serious consequences including kidney failure.

  • Pancreatitis

In rare cases, a pregnant woman may face inflammation of the pancreas. This can happen if failure during pregnancy diet, the consumption of food with lots of fat, alcohol is a hereditary factor or a consequence of stress. If lower back pain during pregnancy is surrounding the character, occurs after or during a meal, accompanied by fever, nausea or vomiting, impaired chair, the doctor makes a diagnosis of "pancreatitis".

The disease is diagnosed using ultrasound, MRI, treated in stationary conditions. Drug therapy for lower back pain during pregnancy is carried out using a number of anti-inflammatory and analgesic drugs. Occasionally, in case of failure of conservative treatment, there is a need for surgical intervention.

  • Neuroscience

Often back pain during pregnancy because of exacerbation of the existing problems of the musculoskeletal system. If a woman before pregnancy was tormented by osteochondrosis or sciatica, the changing load will lead to aggravation. Source of problems is not enough developed muscular system of the back or curvature of the spine. Such a diagnosis indicates the occurrence of severe back pain during pregnancy in the second trimester or later.

Neurological problems pain are of a shooting character, is reduced in the lying position and increases with load, it can be a feeling of numbness.

It is very dangerous to self-medicate. Because most of the drugs used in such cases is contraindicated in pregnancy. In exceptional cases, the doctor may prescribe a painkiller. If a sore lower back during pregnancy because associated with neurological problems, the easiest solution is wearing the brace. The corset will provide support for the musculoskeletal system, without having a negative effect on child development.

  • Myositis

Finding draughts or hypothermia can lead to an inflammatory process in the muscles of the lower back. Then the pain is characterized by sharp character and limited movements. In addition to the back, can hurt the neck and shoulder girdle. Treatment should be a doctor who can prescribe drugs, as safe for the baby.

  • Semisupine

At low location of pain in the back and abdomen, may be suspected symphysis. The disease will show a changed gait, which acquires the character "duck". Due to the divergence of the pubic bone, is inherited. If the reason due to which back pain during pregnancy, Semisupine, the doctor will recommend bed rest and will be monitored throughout the pregnancy.

  • Spondylolisthesis

If a history of spinal injury or congenital anomalies of development of the vertebral arcs, the increased load can cause pain in the lower back during pregnancy. The vertebrae can move relative to each other, and that will be the impetus for severe pain in the lower back.

Such pain can be distinguished from the increase in sitting posture, when the process of lifting heavy objects, when you change body position. The pain may radiate to the legs. The spinal deformity can be noticed visually. The muscles surrounding the spine laterally, are in a stressed state. Develops special walk "tightrope". If the cause of spondylolisthesis in low back hurts during pregnancy, this disease is treated using medications, physiotherapy, therapeutic gymnastics.



If a sore lower back during pregnancy, it is important to remember one thing: never to get involved in self-diagnosis and self-treatment. The first thing is to make pregnant, which was shot in the lower back during pregnancy is to contact the specialist. The doctor will also help to prevent back pain during pregnancy, recommend:

  • Stop wearing shoes with high heels;
  • Monitor gradual weight gain;
  • Lead a moderately active lifestyle;
  • Do not overexert, to avoid excessive load on the spine;
  • To do special gymnastics;
  • To control posture;
  • For sleep select anatomic mattress and a small pillow;
  • Learn correct lifting of objects (you should bend your knees and produce a forward bend);
  • Ensure proper nutrition with a high content of calcium and phosphorus.

If pregnant sore back, that's no reason to panic. However, it is necessary to exclude possible pathological processes, as well as get recommendations on how to eliminate discomfort. If back pain during pregnancy what to do advise a doctor.