The most common reason for sleeping to five o’clock more lumbosacral abdominal distension to get up to alleviate the most common cause is gynecological inflammation, urinary tract infection, prostatitis, kidney stones and other diseases, if frequent occurrence of this symptom, it is recommended that timely medical treatment. 1. Gynecological inflammation: women may have cervicitis, vaginitis and other diseases, when the inflammation attack can cause abdominal distension and pain when sleeping, there may also be lumbosacral pain, get up and get up through the activities, drinking water, urination and other ways to alleviate the symptoms. 2. urinary tract infection: cystitis, urethritis and other inflammatory attacks may also cause sleep to five o’clock lumbosacral abdominal distension, usually accompanied by frequent urination, urinary urgency and other symptoms, get up and urinate after the symptoms may be reduced. 3. Prostatitis: when inflammation occurs in the male prostate, due to the anatomical location of the prostate is relatively deep, the inflammation attack is also prone to cause pain in the abdomen and lumbosacral pain when sleeping, and the symptoms will be alleviated after urination. 4. Kidney stones: with kidney stones, if the position changes while sleeping, it is also easy to cause the stones to stimulate the surrounding mucous membranes, and then the abdomen, lumbosacral pain. Caused by sleep to five more lumbosacral abdominal distension and pain in more reasons, if the long-term symptoms, it is recommended to go to the hospital in a timely manner for examination, by the doctor to clarify the cause of the disease, targeted treatment.