Dark spots inside the eyes are usually not a manifestation of ascariasis, and may be related to inflammation, metabolism and so on. Patients with black spots in the eyes such as dark spots or flaky pigmentation on the conjunctiva or iris surface, most of them are not related to parasitic disease, and this situation may generally be caused by inflammatory stimulation, metabolic disorders and other reasons. Ascariasis patients may manifest as stomach pain, body wasting, in order to confirm the diagnosis of whether there is ascariasis need to do stool examination, including the examination of the eggs, if the discovery of ascaris eggs can be diagnosed as having ascariasis. The cause of ascariasis is mostly related to unhygienic diet, in order to prevent ascariasis, we should pay attention to dietary hygiene. It is recommended that patients with black spots inside the eyes and other discomforts should consult a doctor promptly to evaluate their condition and follow the doctor’s instructions for treatment.