The danger of IgA nephropathy is very serious and must be treated early, and lumbago is a common symptom of IGA nephropathy patients, so is having lumbago is suffering from IGA nephropathy? Waist pain is not the only criterion to diagnose kidney disease, IgA nephropathy often shows: fever, dizziness, weakness, abnormal urine, cough, lumbago, vomiting, loss of appetite, edema, sore throat and other symptoms. Once similar symptoms appear, we should go to a regular kidney hospital for a good kidney function test in time. There are many causes of low back pain, the most common of which are benign diseases such as lumbar muscle strain and osteophytes, which are often related to frequently maintaining a body position and lumbar muscle strain. Diseases of the urinary system, such as ureteral stones, may also cause low back pain, which mainly manifests as unbearable colic. The kidney is located in the posterior abdominal cavity of the body. Kidney tumors occur from renal tubular epithelial cells and grow gradually. When it invades the renal pelvis, hematuria may appear; when the lesion penetrates the perinephric membrane and invades into the perinephric fat or even the neighboring organs, it will cause back pain. If the tumor does not grow to a certain extent, there may also be no painful symptoms, therefore, low back pain is likely to be caused by the cause of iga kidney disease. 1, male low back pain is a common symptom of kidney deficiency, male kidney deficiency caused by low back pain is mainly a manifestation of kidney deficiency in the neuromuscular aspect, accompanied by insomnia, dizziness, back pain, lower limb weakness, etc.; often feel very sleepy but can not sleep well, dreamy, easy to wake up. In men with kidney deficiency who have low back pain, there is often a significant trend of weight gain or loss. In the morning, the abdominal muscles are found to be flaccid and weak pale and bloodless. 2, the symptoms of kidney deficiency can also appear at night polyuria, where the number of nocturnal urination is more than 2 times, or the volume of urine crosses the whole day 14, serious kidney deficiency patients of nocturnal urination once an hour. 3, back pain, time body raw and unchanging sitting in the car, plus driving ghosts intensive, years and years to form a stagnant blood stasis and finally lead to kidney deficiency. This is also the most important symptom of kidney deficiency performance.