Understanding the symptoms of melanoma that has spread is important for anyone with a history of melanoma or at-risk skin lesions. When melanoma metastasizes, it moves beyond the original skin site to lymph nodes, lungs, liver, brain, or bones, and the symptoms of melanoma that has spread vary depending on where in the body the cancer has traveled. If you are reading this because you or someone you love is facing this possibility, know that a diagnosis of advanced melanoma is not the outlook it was even ten years ago—treatment has changed profoundly, and this guide covers both the warning signs and the reasons for realistic hope.
Melanoma accounts for only about 1% of skin cancers but causes a large share of skin cancer deaths, according to the American Cancer Society. Based on the most recent data (diagnoses from roughly 2015 to 2021), the five-year relative survival rate is greater than 99% for melanoma that is still localized, about 76% when it has spread to nearby (regional) lymph nodes, and around 36% once it has reached distant organs. Those distant-stage numbers, while sobering, have risen substantially in the immunotherapy era and continue to improve—which is exactly why recognizing metastatic symptoms early and seeking treatment promptly can meaningfully affect outcomes. For more on health conditions, see our medical conditions guide.
This article is for general education and is not a substitute for medical advice. Metastatic symptoms are non-specific and overlap with many benign conditions. Only your oncology team can determine whether melanoma has spread, using examination, imaging, and biopsy.
How Melanoma Spreads
Melanoma can spread through two main routes: the lymphatic system and the bloodstream. The pattern of metastasis typically follows a fairly predictable progression, though exceptions occur.
Local spread: The melanoma first grows deeper into the skin. Satellite lesions (small tumor deposits near the original site) or in-transit metastases (tumor deposits between the original site and the nearest lymph node basin) may develop.
Regional spread: Cancer cells travel through lymphatic vessels to nearby lymph nodes. Swollen lymph nodes near the melanoma site are often the first sign of spread. For a leg melanoma, this usually means the groin. For an arm melanoma, the axilla (armpit).
Distant spread: Cancer cells enter the bloodstream and travel to distant organs. The most common sites for distant melanoma metastasis are the lungs, liver, brain, bone, and skin or soft tissue at remote locations. Less commonly, melanoma can spread to the gastrointestinal tract, heart, adrenal glands, and kidneys.
The risk of metastasis correlates with the thickness (Breslow depth) of the original melanoma, the presence of ulceration, and the mitotic rate (how quickly the cancer cells are dividing). Melanomas thicker than 4 mm at diagnosis carry the highest risk of distant spread. Genetic features of the tumor—such as a BRAF mutation—do not change how melanoma spreads but do shape which treatments are likely to work.
Metastatic Melanoma Symptoms by Site: A Quick Reference
Because symptoms depend so heavily on location, the table below summarizes what to watch for. Use it as an orientation tool, not a diagnostic checklist—any of these findings has many possible causes, and the only way to know is a medical evaluation.
| Site of spread | Common symptoms |
|---|---|
| Lymph nodes (regional) | Firm, swollen, usually painless lump near the original melanoma (groin, armpit, or neck) |
| Lungs | Persistent cough, shortness of breath, chest pain, coughing up blood |
| Liver | Upper-right abdominal pain, jaundice, itching, appetite loss, nausea |
| Bone | Deep, persistent pain (often worse at night), fractures with little trauma |
| Brain | New or worsening headaches, seizures, one-sided weakness, vision or speech changes |
| Skin / subcutaneous | New firm lumps under the skin, pigmented or skin-colored nodules at distant sites |
| Systemic (whole body) | Unexplained weight loss, severe fatigue, persistent low-grade illness |
Swollen Lymph Nodes
Hard, painless, swollen lymph nodes near the original melanoma are one of the earliest and most common signs of regional metastasis. The affected nodes may feel firm or rubbery and are typically fixed in place rather than freely mobile.
Common locations include the groin (for lower-extremity melanomas), the axilla (for upper-extremity and trunk melanomas), and the neck (for head and face melanomas). Sometimes the swollen node is discovered before the primary melanoma is even identified, particularly when the original skin lesion was small, changed subtly, or was in a hidden location such as the scalp, back, or sole of the foot.
Not all swollen lymph nodes indicate cancer. Infections, autoimmune conditions, and other factors commonly cause lymph node enlargement, and most swollen nodes are not cancer. However, any new, persistent lymph node swelling in a person with a melanoma history should be evaluated promptly with ultrasound and possible biopsy rather than watched at home.
Symptoms of Melanoma Spread to the Lungs
The lungs are one of the most common distant sites for melanoma metastasis. Symptoms may not appear until the metastases are substantial.
Pulmonary symptoms include: a persistent cough that does not resolve, shortness of breath, chest pain that may worsen with deep breathing or coughing, coughing up blood (hemoptysis), and recurrent respiratory infections.
Small lung metastases are often detected on routine surveillance imaging (CT scans) before they cause any symptoms. This is one reason regular follow-up imaging is important for patients with a history of intermediate- or high-risk melanoma. The National Comprehensive Cancer Network (NCCN) publishes staging-specific surveillance guidance that your care team tailors to your situation.
Symptoms of Melanoma Spread to the Liver
Liver metastases may cause no symptoms initially but can produce significant problems as they grow and compromise liver function.
Liver involvement symptoms include: pain or discomfort in the upper-right abdomen, an enlarged liver (hepatomegaly) that may be felt as a firm fullness below the right rib cage, jaundice (yellowing of the skin and whites of the eyes), unexplained itching, loss of appetite, nausea, and unexplained weight loss.
Elevated liver enzymes on routine blood work may be the first clue to liver metastases. Alkaline phosphatase, AST, ALT, and lactate dehydrogenase (LDH) are commonly monitored during melanoma follow-up. An elevated LDH level is particularly significant because it is an independent predictor of poorer prognosis in metastatic melanoma and is part of the AJCC staging system.
Symptoms of Melanoma Spread to Bone
Bone metastases from melanoma can cause significant pain and disability. While less common than lung, brain, and liver metastases, bone involvement occurs in a meaningful minority of patients with distant disease.
Bone metastasis symptoms include: persistent, localized bone pain that worsens over time and is often worse at night; pathological fractures (bones breaking with minimal trauma); spinal cord compression if vertebral metastases press on the spinal cord (causing back pain, leg weakness, and bowel or bladder dysfunction, which is a medical emergency); and elevated blood calcium levels (hypercalcemia), which can cause confusion, constipation, excessive thirst, and kidney problems.
Bone metastases are typically identified through CT scans, PET scans, or bone scans. Treatment may include radiation therapy for pain relief, surgery to stabilize fractures, and bone-protecting medications such as bisphosphonates or denosumab. For more on bone-related cancer symptoms, see our article on symptoms of bone cancer.
Symptoms of Melanoma Spread to the Brain
Melanoma has a notable tendency to metastasize to the brain—it is among the cancers most likely to do so. In some series, a large share of patients with stage IV melanoma develop brain metastases at some point during their disease, which is why any new neurological symptom in a person with a melanoma history deserves prompt attention.
Brain metastasis symptoms include: persistent or worsening headaches (especially morning headaches that improve through the day), seizures (which may be the first indication of brain involvement), weakness or numbness on one side of the body, vision changes including blurred vision and visual field loss, difficulty with speech or comprehension, personality or behavioral changes, nausea and vomiting from increased pressure inside the skull, and balance or coordination problems.
Seek emergency medical attention (call 911) if you experience a sudden severe headache, a seizure, sudden weakness or numbness on one side of the body, or sudden vision loss. These can indicate acute complications from brain metastases, including bleeding (hemorrhage), which melanoma brain metastases are particularly prone to. For more on brain-related symptoms, see our guide on symptoms of brain tumor.
Call 911 or go to the nearest emergency department immediately for any of these: a seizure, a sudden severe or “worst ever” headache, sudden weakness or numbness on one side of the body, sudden vision loss, sudden confusion or trouble speaking, or loss of bladder or bowel control. In a person with a melanoma history these can signal a brain metastasis or spinal cord compression and are treated as emergencies.
Systemic Symptoms of Advanced Melanoma
Regardless of which organs are involved, advanced melanoma often produces systemic symptoms that affect the entire body.
Unexplained weight loss: Losing more than about 5% of body weight over six months without dietary changes is a common cancer warning sign. In melanoma, this may result from liver involvement, reduced appetite, or the metabolic demands of the growing cancer.
Severe fatigue: Overwhelming tiredness that does not improve with rest and interferes with daily functioning. This can stem from the body’s immune response to cancer, anemia, and nutritional deficits.
Skin nodules: New, firm lumps under the skin at sites distant from the original melanoma can indicate subcutaneous metastases. These may appear as dark (pigmented) or skin-colored nodules and are sometimes the first sign a person notices.
Elevated LDH: While not a symptom you can feel, a rising LDH level on blood work is one of the more reliable laboratory markers of metastatic melanoma progression.
When to See a Doctor
Anyone with a history of melanoma should maintain regular follow-up appointments and stay alert to new symptoms. Contact your oncologist or dermatologist promptly if you notice new or persistently swollen lymph nodes, an unexplained cough or shortness of breath lasting more than two to three weeks, new headaches or neurological symptoms, abdominal pain or yellowing of the skin, unexplained bone pain, new skin lumps or nodules, or unexplained weight loss or persistent fatigue.
Seek emergency care immediately for: seizures, a sudden severe headache, sudden weakness or numbness on one side of the body, sudden vision loss, loss of bladder or bowel control, or new confusion and disorientation.
Reasons for Hope: How Treatment Has Changed
It is worth stating plainly: the outlook for metastatic melanoma has improved more in the last decade than for almost any other advanced cancer. Modern immunotherapy—checkpoint inhibitors such as pembrolizumab (Keytruda), nivolumab (Opdivo), and combination regimens—can produce durable, long-lasting responses in a meaningful share of patients, something that was rare in the era of older chemotherapy. For melanomas that carry a BRAF mutation, targeted therapy (BRAF/MEK inhibitors) offers another effective option, and newer approaches, including tumor-infiltrating lymphocyte (TIL) therapy, have expanded the toolkit further.
According to the National Cancer Institute, long-term survival for metastatic melanoma has improved dramatically compared with a decade ago, and some patients now achieve remissions measured in years. Early detection of metastases generally allows for more treatment options and better outcomes, so knowing the warning signs is not about fear—it is about getting effective treatment sooner. Your oncology team can explain which options fit your specific tumor and health.
Frequently Asked Questions
How quickly does melanoma spread?
The speed of melanoma spread varies widely. Some melanomas remain localized for years, while others can metastasize within months of diagnosis. Thicker melanomas, those with high mitotic rates, and ulcerated melanomas tend to spread more quickly. Regular follow-up and imaging help catch metastases early, when more can be done.
Can melanoma spread even after the primary tumor is removed?
Yes. Microscopic cancer cells may have already entered the lymphatic system or bloodstream before the original melanoma was removed. This is why patients with deeper melanomas may undergo sentinel lymph node biopsy and may be offered adjuvant (preventive) immunotherapy or targeted therapy. Follow-up surveillance continues for years after initial treatment.
What are the survival rates for metastatic melanoma?
Using the most recent data, the five-year relative survival rate for distant (stage IV) melanoma is around 36%, up markedly from roughly 5% before modern immunotherapy and targeted therapy. Some patients achieve durable, complete responses lasting many years. Survival depends on the specific sites of metastasis, LDH level, overall health, tumor mutation status, and response to treatment, so an individual’s outlook can differ substantially from an average.
How is metastatic melanoma treated?
Treatment options include immunotherapy (checkpoint inhibitors), targeted therapy (BRAF/MEK inhibitors for melanomas with BRAF mutations), cellular therapies such as TIL therapy, radiation therapy (especially for brain or bone metastases), surgery for isolated metastases, and clinical trials. Treatment is tailored to the individual based on mutation status, sites of metastasis, and overall health. Many patients respond well to combinations of these approaches.
Does melanoma ever come back after being declared cancer-free?
Melanoma can recur years or even decades after successful initial treatment. Late recurrences, occurring 10 to 15 years after the original diagnosis, are well documented. This is why lifelong skin surveillance and awareness of metastatic symptoms are recommended for all melanoma survivors.
Are these symptoms proof that my melanoma has spread?
No. Every symptom described here has many benign causes—coughs, aches, fatigue, and swollen nodes are far more often something other than cancer. These signs are prompts to be evaluated, not a diagnosis. Only imaging and biopsy ordered by your clinician can confirm or rule out spread, so bring any concerns to your care team rather than trying to decide at home.
Stay Vigilant
The symptoms of melanoma that has spread depend on which organs are affected. Swollen lymph nodes, a persistent cough, neurological changes, abdominal pain, and bone pain should all prompt evaluation in anyone with a melanoma history—and brain-related emergencies should prompt a call to 911. Thanks to advances in immunotherapy, targeted therapy, and cellular treatments, metastatic melanoma is more treatable than ever before, and many people live well for years. Early detection of spread remains one of the best ways to keep all options open. Maintain your follow-up schedule, know the warning signs, and report new symptoms to your oncology team without delay.
TL;DR
Metastatic melanoma causes different symptoms depending on where it spreads—firm swollen lymph nodes, cough or breathlessness (lungs), abdominal pain or jaundice (liver), deep bone pain or fractures (bone), headaches, seizures, or one-sided weakness (brain), plus whole-body signs like weight loss and fatigue. A sudden severe headache, seizure, one-sided weakness, or sudden vision loss is an emergency—call 911. Anyone with a melanoma history should keep every follow-up visit and report new symptoms promptly. The encouraging news: immunotherapy and targeted therapy have transformed treatment, and outcomes are far better than a decade ago. This is general information, not medical advice or a diagnosis. Only your clinician can determine whether melanoma has spread. Always seek personalized care from a qualified professional.
Sources
- American Cancer Society — Survival Rates for Melanoma Skin Cancer, and Key Statistics for Melanoma Skin Cancer
- National Cancer Institute — Melanoma Treatment (PDQ) Patient Version
- National Comprehensive Cancer Network (NCCN) — Melanoma Patient Guidelines
- Cleveland Clinic — Metastatic Melanoma
- Mayo Clinic — Melanoma: Symptoms & Causes
- Centers for Disease Control and Prevention (CDC) — Skin Cancer