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Pain in left side at waist level - possible causes and diagnosis

Osteochondrosis-sore-side Often people complain of pain in the left side of the abdomen at the waist level.Pain is common when a person can not determine exactly which area it hurts.Or pain can predominantly center around the waist in front or behind in the waist.Certainly, the pain does not arise simply so, therefore to find out the reason of its occurrence is simply necessary.

Table of contents: Possible causes of pain Urinary system disease Pancreatic diseases Bowel diseases

Possible causes of pain

The pain in the left side at the waist level can hide the pathology of various organs.So, in this area of ​​the abdomen, the descending colon is projected, as well as the loops of the small intestine, the left kidney with the ureter.It must also be remembered that the pain in this part of the abdomen can be provoked by the pathology of another digestive organ, namely the pancreas.

Diseases of the urinary system

It is often enough for pain in the side at the waist level to hide kidney disease. This is a paired organ that lies on the back wall of the abdominal cavity.In fact, the kidneys are located in the lumbar region.When they are unhealthy, a person's painful sensations appear in the lower back.However, the pain irradiates in the side, as well as the groin and perineal region.

The most common kidney disease is pyelonephritis .With left-side pyelonephritis, a person is concerned about low back pain, often radiating to the left side at the waist, abdominal area.Acute pyelonephritis proceeds with severe intoxication, high body temperature, pronounced weakness, loss of appetite.Characteristic disorders of urination.It hurts a person to urinate, while urine follows in small portions.


Pain in the left side can also be provoked by urolithiasis( IBD). The clinical picture of the disease depends directly on the location of the stone and the presence / absence of disturbances in the outflow of urine.When the stone clogs the ureter and disturbs the passage of urine, renal colic develops.The pain concentrates mainly in the lower back, but soon irradiates along the ureter - in the lateral and lower abdomen, the groin, the perineum.Pains, as a rule, overtake a person suddenly, usually after physical activity, riding in transport. Renal colic may be accompanied by the appearance of blood in the urine, as well as a violation of urination.

Pancreatic Diseases

The functioning of the pancreas depends on the full process of digestion.The organ lies in the upper floor of the abdominal cavity.In the structure of the gland distinguish the body, tail and head.The body and gland head are located in the epigastric region, and the tail is in the left hypochondrium.

The most common pancreatic disease is pancreatitis .Pain in acute pancreatitis is called pancreatic colic.This is a sudden, intense pain.These painful sensations diffuse diffusely on the upper part of the abdomen, and do not concentrate at any particular point.In addition, acute pancreatitis is characterized by a peculiar girdling pain, when it hurts in the left side, in the right, and even from the back.


In favor of acute pancreatitis, I also testify to such signs:

  • Lack of appetite;
  • Vomiting;
  • Flatulence;
  • Diarrhea.

In chronic pancreatitis, pain is only disturbed during exacerbations.Pain usually occurs against a diet violation. In chronic pancreatitis, the pain syndrome can occur as one of the following:

  • By type of left-sided renal colic( pain in the left side, radiating to the waist);
  • According to the type of right hypochondrium syndrome( pain radiates to the right hypochondrium, in addition signs of cholestasis are attached);
  • Common pain syndrome( pain without specific localization).

Bowel diseases

Cramping abdominal pains caused by intestinal spasms are called intestinal colic .Errors in nutrition, irregular intake of food can easily provoke intestinal colic.Pain in this case, as a rule, is felt throughout the stomach, but can be concentrated in one area, for example, in the left side.

Intestinal colic may be caused by acute intestinal infections, as well as helminthiases .An important role is played by the person's psychic constitution.So, in anxious, impressionable people, any experiences provoke intestinal colic, as well as stool disorders.In some cases, this feature even becomes an independent disease - irritable bowel syndrome.


Pain in the left side at the waist level also occurs with a chronic disease such as ulcerative colitis( NUK). Often, the disease begins with a lesion of the rectum, then passes to the sigmoid and descending colon.This form of the disease is called left-sided colitis and is the most common( noted in approximately 80% of cases).With left-sided colitis, pain occurs in the left side at the waist level and falls lower.In 20% of cases, the inflammation captures the transverse-colon and the ascending colon.In this case, painful sensations occur throughout the abdomen. Associated signs of NNC are:

  1. Blood in the stool;
  2. Frequent diarrhea;
  3. Tenesmus;
  4. Weight loss.

The pain in the left side can be caused by Crohn's disease.Symptoms of the disease depend on the localization of the inflammatory process.So, with lesions of the large intestine( in particular, the descending colon), the pain may be concentrated in the left side.Concomitant symptoms of this ailment are frequent diarrhea, weight loss, blood in the stool.

Thus, for pain in the left side at the waist level, various causes can hide: from banal intestinal colic to acute surgical pathology.The appearance of pain in the left side is a weighty reason for conducting a medical examination and necessary research.

Grigorova Valeria, medical reviewer

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