Most diagnoses are made by identifying the appearance of the worm or eggs in feces. Due to the large quantity of eggs laid, diagnose can generally be made using only one or two fecal smears. The diagnosis is usually incidental when the host passes a worm in the stool or vomit. The eggs can be seen in a smear of fresh feces examined on a glass slide under a microscope and there are various techniques to concentrate them first or increase their visibility, such as the ether sedimentation method or the Kato technique. The eggs have a characteristic shape: they are oval with a thick, mamillated shell (covered with rounded mounds or lumps), measuring 35-50 micrometer in diameter and 40–70 in length. During pulmonary disease, larvae may be found in fluids aspirated from the lungs. White blood cell counts may demonstrate peripheral eosinophilia; this is common in many parasitic infections and is not specific to<unk> . On X-ray, 15–35 cm long filling defects, sometimes with whirled appearance (bolus of worms).
Ascariasis
Toxocariasis
Acariasis
Schistosomiasis
Strongyloidiasis
Myiasis
Monorchism
Intestinal capillariasis