Schistosoma haematobium eggs found by intra-fecal or rectosigmoid mucosal biopsy is one of the diagnostic bases of pulmonary schistosomiasis. Pulmonary schistosomiasis is the most common form of ectopic schistosomiasis caused by the migration, development and parasitism of schistosomal worms and adults in the lungs, or the deposition of their eggs in the pulmonary tissue of pulmonary schistosomiasis, resulting in inflammation, abscesses, granulomas and pseudotuberculosis in the lungs. What are the examination methods for finding schistosome eggs by intra-fecal or rectosigmoid mucosal biopsy? 1. Egg count The egg count is an ancillary test used to examine for parasites. The egg count is used to estimate the degree of parasite infection in the human body and is commonly performed by the Sturgeon’s method, i.e. the Sturgeon’s dilution egg count method. This phase examination can be used to determine the corresponding signs of disease. 2. Trichuri hatching method Trichuri hatching method is an auxiliary test used to examine parasites. The trichuriasis hatching method is most often used in conjunction with the natural sedimentation method or the nylon sieve egg collection method for the diagnosis of schistosome infections, as there are fewer eggs in the stool of schistosomiasis patients, which are not easily detected by the direct smear method. Schistosoma haematobium eggs can hatch within a short period of time at a temperature of 25-28°C and pH 7.5-8.0 in clear water, and after hatching the larvae move in a straight line near the water surface. Because this method will be a larger amount of feces by water washing natural sedimentation method or using nylon silk sieve egg collection method concentration, and then the hatching of caterpillars, so that the detection rate is significantly higher than the general method. This phase examination can be used to determine the corresponding signs of disease. Hooked larvae culture method Hooked larvae culture method is an auxiliary examination method used to examine parasites. It is also called test tube filter paper culture method. Under suitable conditions of temperature and humidity, hookworm eggs develop and hatch larvae within a few days, usually after 3-5 days, and can be observed with the naked eye or magnification, the detection rate is 7 times that of the direct smear method, which is also better than the saturated saline floating aggregation method. This phase examination can be used to determine the corresponding disease signs. 4.Urinary parasite test The urinary parasite test is an auxiliary test used to check for parasites. The pathogens in urine are Trichomonas vaginalis and Schistosoma egypti eggs. Urine (especially celiac disease) and sphincter fluid are examined primarily for Microfilaria bancrofti. Parasitic infections of the urinary tract include trichomonas urinary tract infections, urinary filariasis, urinary tract amebiasis, and renal echinococcosis. Due to their different infectious agents, pathogens and transmission routes, their clinical lesions vary. The corresponding signs can be determined by this examination.