Parasitic worm infections can cause a wide range of symptoms depending on the species and severity. Common signs include abdominal pain, diarrhea, nausea, vomiting, bloating, and unexplained weight loss. Some people experience fatigue, anemia, vitamin deficiencies, or itching around the anus. In more advanced cases, symptoms may include cough, shortness of breath, muscle pain, fever, or visible worms in stool. Children may show poor growth or learning difficulties. Early diagnosis and treatment are important. Information about therapies, including options discussed by suppliers such as nizonide wholesale providers, is often sought by healthcare professionals managing parasitic infections in diverse clinical settings.