<s>[INST] I, aged 47 yrs., had L5/S1 microdisectomy done on 11.09.12 byspine surgeon. I was discharged on 13.09.2012. After 5 days frommy operation I started to have fever ( oral temperature 99 F to 100 F)usually fever started to come within 10am. to 10.30 am. and continuedthroughout the day and in the morning again it became 97F--98F. This isstill continuing. I visited one medicine doctor as per surgeon`s advisethrice during the period, he prescribed me initially tab. LOXOF 750 mg.one tab daily for 10 days. Later tab. Oratil 500 one tab. twice daily for10 days. Later tab Urispas & advised to take plenty of water With this mytemperature started to appear in the evening & continued till night.Followup visit was made with my surgeonon 10.10.2012. His report goes:-" 1 month postoperative- the patient is doing well. However she is havingpersistent evening rise of temperature. On examination- SLR normal,no gross neurodeficit, ROM full, no tenderness, scar healed. CRP( 2 weeks back ) - mildly positive ( 1.5 times positive), Urine C/S- no growth."But evening temperature was still continuing . He advised me to seesee physician for body temperature .Again medicine Dr. advised me to stopto take medicine except 650mg. paracetomol on SOS basis.Now againI am having temperature as before. I am running such temperature for last 1& half month . When tem. comes I feel headache & scorching my eyes. I havestill pain in my back but I can walk to some extent.Can anyone help me inproper diagnosis? My present Drs. perhaps do not know the reason formy temperature rise. I also feel chills. Can anyone guide me? It is alsoobserved that when I get up from sleep my temperature becomes normal. [/INST] Hello Thank you for trusting Chat Doctor Dear most of the postoperative fever cases after spine surgery have no identifiable infectious focus and develop mainly in older patients with anemia and inadequately controlled HbA1c. A meticulous investigation of the source of fever including laboratory and radiological studies remains essential. Early mobilization is recommended for individuals undergoing lower spine surgery in order to decrease bacterial contamination from the gluteal cleavage. Uti, pneumonia, wound infection to be evaluated. Chronic fever surgery to be ruled out tuberculosis, Pyrex of unknown origin and immunocompromised stats. Please consult your doctor further evaluation. </s>