Ureteral stone embedded in the third stenosis may appear symptoms: renal colic, hematuria, nausea and vomiting, infection symptoms. 1. renal colic: ureteral stone embedded in the third stenosis can cause ureteral obstruction, when ureteral spasm occurs, the patient can appear renal colic symptoms, manifested as paroxysmal severe pain, mostly located in the lower abdomen or lumbar back, and can be radiated to the groin, perineum. 2. hematuria: ureteral stone embedded in the ureteral stenosis can cause friction damage to the ureteral mucosa, resulting in ureteral mucosal congestion, edema, hemorrhage, and then the emergence of hematuria symptoms, but relatively rare. 3. Nausea and vomiting: when ureteral stones cause obstruction, the pressure in the lumen increases, and the local expansion, congestion and spasm of the ureteral wall can send out nerve impulses. Since some innervation of the ureter overlaps with the gastrointestinal tract, the abovementioned nerve impulses can lead to nausea and vomiting and other gastrointestinal symptoms. 4. Infection symptoms: ureteral stone embedded in the third stenosis is very easy to complicate the infection, the patient can appear fever, chills, urinary frequency, urinary urgency and other systemic or urinary tract infection symptoms. The above symptoms, suspected of ureteral stone embedded recommended that patients go to the hospital as soon as possible, timely and clear diagnosis to be treated accordingly.