Persistent digestive symptoms such as diarrhea, abdominal pain, bloating, nausea, or vomiting
Unexplained weight loss or poor appetite
Fatigue or weakness without a clear cause
Itching around the anus, especially at night
Visible worms, eggs, or segments in stool
Blood or mucus in stool
Skin rashes, hives, or unexplained itching
Fever or general feeling of being unwell
Muscle aches or joint pain
Anemia or signs of low iron
Trouble sleeping or restlessness
Travel to areas with poor sanitation or unsafe food and water exposure
Recent contact with contaminated water, soil, animals, or undercooked meat or fish
A stool test or other medical test confirming parasites