What should you know about gametocytes in malaria?

Malaria has several parasite stages. Gametocytes are linked to transmission, while other stages are responsible for multiplying in the body and causing illness. Finding them in a blood sample supports malaria infection, but the result must be interpreted with the parasite species, parasite level, symptoms, travel history, and previous medicines. Fever, chills, and muscle aches can occur with malaria, though symptoms vary and can become serious.

Contact a clinician promptly if a test shows malaria or if you develop illness after visiting a malaria area. Take prescribed antimalarial medicine exactly as directed and do not stop because the fever improves. Drink fluids if you can, rest, and record fever, travel dates, and medicines taken. A [Blood Test](/treatments/diagnostics-and-screening/blood-test/) may identify the parasite and help guide treatment. Before future travel, discuss [Malaria Prophylaxis](/treatments/occupational-and-travel-medicine/malaria-prophylaxis/) with a travel clinician.

Go to urgent care for confusion, fainting, seizures, severe weakness, difficulty breathing, repeated vomiting, inability to drink, or worsening drowsiness. A high or persistent fever after travel also needs prompt assessment, especially if you have not been tested. Malaria can worsen quickly, so do not wait for symptoms to settle on their own.

Ask which malaria species was detected, whether gametocytes were seen, what treatment schedule you need, and whether repeat blood testing is required. Ask when you can return to work or travel and how to reduce mosquito exposure. A [Travel Health Consultation](/treatments/occupational-and-travel-medicine/travel-health-consultation/) can help plan prevention.