What should you know about stage 4 melanoma prognosis?

Prognosis is an informed clinical estimate, not a fixed timetable. Doctors consider the number and location of metastases, whether they cause symptoms, how quickly they change, previous treatment, and how well the body can tolerate therapy. A melanoma deposit in one organ may behave differently from several deposits in different organs. Tumour testing can reveal features that influence treatment choices. Ask your clinician to explain what is known, what remains uncertain, and which upcoming scan or examination will provide the next useful information.

The [Melanoma](/conditions/melanoma/) overview provides background on the disease; [Brain Metastases](/conditions/brain-metastases/) covers one possible distant site.

Request a written treatment plan with its goal, expected review point, and symptoms to report. Treatment may include immunotherapy, targeted medicines when tumour testing supports them, surgery, radiation, or supportive care. [Immunotherapy](/treatments/systemic-therapy/immunotherapy/) can produce immune-related effects in many body systems, so early reporting matters. Keep a record of pain, energy, appetite, breathing, bowel changes, and new neurological symptoms. Follow-up scans compare change over time rather than relying on how you feel on one day.

Call the care team quickly for new confusion, a seizure, severe headache, weakness, breathing difficulty, chest pain, repeated vomiting, dehydration, uncontrolled pain, or a sudden decline in function. During treatment, fever, severe diarrhoea, a widespread rash, unusual bleeding, or yellow skin can signal a treatment effect or another urgent illness. Early assessment may allow the team to adjust care and manage symptoms before they become harder to control.

Which features of my melanoma most affect the outlook? What is the goal of the first treatment? How will you judge whether it is working? What would prompt a change in treatment? Should [Sentinel Lymph Node Biopsy](/treatments/diagnostics-and-staging/sentinel-lymph-node-biopsy/) be discussed in my situation, or is the disease already assessed another way? Who should I call outside clinic hours?