With kidney stones coitus may appear hematuria, it is recommended to consult a doctor in time. Kidney stone patients in the process of coitus may cause excessive activity of the stone, so that the stone and the kidney mucosa friction, damage to the kidney capillaries, the phenomenon of hematuria. Usually need to drink more water, promote urination, more exercise, can promote the discharge of small stones. If accompanied by pain or bleeding for a long time, it is recommended to consult a doctor for renal ultrasound examination. If the stone size is between 0.6cm-1.2cm, extracorporeal shock wave lithotripsy will be performed. If the stone size is more than 1.2cm, percutaneous nephrolithotripsy lithotripsy lithotripsy lithotripsy treatment is needed. Patients with kidney stones should control the frequency of coitus to avoid urinary tract infection. If there is any discomfort, consult a doctor in time.