Symptoms of germ cell tumours depend on where the tumour is, how big it is and whether it produces hormones. Symptoms of germ cell tumours outside the brain may include:
- a lump in the abdomen (belly), lower back or testicle
- abdominal (belly) pain
- in girls, not having periods or having unusual bleeding from the vagina.
Germ cell tumours in the brain may cause symptoms such as:
- extreme thirst
- frequent urination
- nausea or vomiting
- changes in vision
- loss of appetite
- weight loss
- early or late puberty.
Note about symptoms
Many conditions – including common childhood infections – can cause these symptoms, not just germ cell tumours. If your child has any of these symptoms and you are concerned, talk to your child’s doctor.