The most common symptom of non-Hodgkin’s lymphoma is a painless, swollen lymph node, usually felt as a lump under the skin in the neck, armpit, or groin. Unlike swollen nodes caused by infections, which tend to be tender and resolve within a couple of weeks, lymphoma-related swelling typically doesn’t hurt and doesn’t go away on its own. Beyond swollen nodes, the disease can cause a wide range of symptoms depending on where in the body it develops and how fast it grows.
Swollen Lymph Nodes
Lymph nodes are small, bean-shaped glands clustered throughout your body, with the largest groups in the neck, armpits, chest, abdomen, pelvis, and groin. When non-Hodgkin’s lymphoma develops, cancerous cells accumulate inside these nodes, causing them to swell. You might notice a painless lump under the skin, most often on the side of the neck, under the arm, or near the groin. Some people discover swollen nodes in multiple areas at once.
What makes these different from the swollen glands you get with a cold or sore throat is persistence. Infection-related swelling is usually tender to the touch and shrinks within a week or two. Lymphoma-related nodes tend to be firm, painless, and stay enlarged. If a lymph node has been swollen for three to four weeks without an obvious cause like a recent infection, that’s generally the point where further evaluation, including a possible biopsy, is recommended.
Whole-Body “B Symptoms”
Doctors pay close attention to a specific cluster of systemic symptoms, sometimes called “B symptoms,” because they can indicate more advanced or aggressive disease. These three symptoms are:
- Unexplained fever: Recurring fevers that come and go without any clear infection.
- Drenching night sweats: Not just feeling warm at night, but sweating so heavily that you soak through your pajamas or sheets.
- Unintentional weight loss: Losing a noticeable amount of body weight without changing your diet or exercise habits.
Persistent fatigue and loss of appetite often accompany these symptoms. Many people initially attribute the tiredness to stress or poor sleep, but lymphoma-related fatigue tends to be deeper and doesn’t improve with rest. If you’re experiencing several of these symptoms together, especially alongside swollen lymph nodes, that combination is more concerning than any single symptom alone.
Chest Symptoms
Non-Hodgkin’s lymphoma can develop in the lymph nodes inside the chest, in an area called the mediastinum. When tumors grow there, they can press on the airways or surrounding structures, causing a persistent cough, shortness of breath, or chest pain. These symptoms can mimic respiratory infections or asthma, which sometimes delays diagnosis. The key difference is that the cough doesn’t respond to typical treatments and the breathing difficulty gradually worsens over weeks.
Abdominal Symptoms
When lymphoma develops in the abdomen, it can enlarge the spleen or liver or cause lymph nodes in the belly to swell. This often creates a feeling of fullness, bloating, or pressure even after eating a small meal. Some people experience abdominal pain or visible swelling around the stomach area. Because these symptoms overlap with common digestive issues, they’re easy to dismiss early on.
Skin Changes
Certain types of non-Hodgkin’s lymphoma, particularly cutaneous T-cell lymphoma, primarily affect the skin. The symptoms can look quite different from what most people picture when they think of cancer. Early signs include flat patches of scaly or slightly raised skin that may itch, often appearing on areas that don’t get much sun, like the torso or upper thighs.
These patches can appear pink, red, brown, or gray on lighter skin. On darker skin tones, the patches may look lighter than the surrounding skin or show as areas of brown or gray discoloration. As the disease progresses, the patches can thicken into raised plaques, and some people develop lumps on the skin that may break open. In advanced stages, a widespread itchy, scaly rash can cover much of the body, and the skin on the palms and soles may become noticeably thicker.
Neurological Symptoms
In rare cases, non-Hodgkin’s lymphoma develops in the brain or spinal cord, known as primary central nervous system lymphoma. Symptoms depend on where the tumor forms but can include persistent headaches, nausea and vomiting, confusion, double vision, hearing loss, weakness in an arm or leg, and seizures. These symptoms tend to develop gradually and worsen over time rather than appearing suddenly.
How Symptom Speed Varies by Type
Non-Hodgkin’s lymphoma isn’t one disease. It includes dozens of subtypes, and how quickly symptoms appear depends largely on whether the lymphoma is indolent (slow-growing) or aggressive (fast-growing).
Indolent lymphomas, like follicular lymphoma, can develop so slowly that people have the disease for months or even years before noticing anything. A painless swollen node might be the only sign, and it may wax and wane in size. Some indolent lymphomas are initially managed with careful monitoring rather than immediate treatment because they progress so gradually.
Aggressive lymphomas, like diffuse large B-cell lymphoma, tend to announce themselves more dramatically. Nodes swell quickly, B symptoms appear early, and people often feel noticeably unwell within weeks. The upside of aggressive lymphomas is that their rapid growth often leads to earlier detection.
Survival Rates by Stage
Catching non-Hodgkin’s lymphoma earlier generally improves outcomes, which is one reason recognizing symptoms matters. For stage 1 disease, the five-year survival rate is about 88%. Even at stage 4, when the disease has spread more widely, the five-year survival rate is roughly 64%.
Specific subtypes vary considerably. Follicular lymphoma, a common indolent type, has a five-year survival rate of about 97% at stage 1 and 83% at stage 4. Diffuse large B-cell lymphoma, the most common aggressive type, has rates of about 80% at stage 1 and 55% at stage 4. These numbers reflect averages across large populations and continue to improve as treatments advance.