Toxoplasmosis

Also called Toxoplasma infection

Toxoplasmosis is an infection caused by a parasite found in cat poo, raw or undercooked meat, unwashed fruit and vegetables, and soil. Most people have no symptoms or mild flu-like symptoms and do not need treatment. It can be serious if caught during pregnancy, as it can harm the baby, or in people with a weakened immune system.

Last updated Nov 9, 2026

What it is

Treatment is usually only needed in pregnancy, for people with a weakened immune system, or if the eyes are affected.

Cooking meat well, washing fruit and vegetables, wearing gloves when gardening and avoiding cat litter during pregnancy help prevent it.

Common signs

  • Often no symptoms
  • Flu-like symptoms
  • Swollen glands
  • Aching muscles
  • Blurred vision or eye pain in eye infection

How it is usually diagnosed

  • Blood tests
  • Eye examination
  • In pregnancy, sometimes tests of the baby

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Blood test results
  • Antenatal notes
  • Eye clinic letters
  • Infectious disease letters

Questions to ask your doctor

  • Is there any risk to my pregnancy?
  • Do I need treatment?
  • How can I avoid it in future?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Confusion, seizures or severe headache in someone with a weakened immune system, or sudden vision changes: get urgent help, call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources