The most common symptom of lymphoma is a painless, swollen lymph node, usually in the neck, armpit, or groin. Beyond that initial lump, lymphoma can cause a cluster of whole-body symptoms including unexplained weight loss, drenching night sweats, persistent fatigue, and fevers that come and go without an obvious infection.
Swollen Lymph Nodes: What They Feel Like
Lymph nodes swell all the time from colds, flu, and other infections. That’s normal. The difference with lymphoma is that the swelling has no obvious cause, doesn’t go away, and tends to be larger than what you’d see with a typical infection.
Lymph nodes are considered enlarged when they reach about 1.5 centimeters, roughly the size of a pea. Nodes swollen from lymphoma are often much bigger, growing to the size of a grape or larger. They typically feel soft and “rubbery,” move freely under the skin, and are painless. That painlessness is actually one of the distinguishing features. With an infection, swollen nodes often feel tender. With lymphoma, they usually don’t hurt at all.
If a swollen node has no clear cause, is at least 2 centimeters, and hasn’t gone away after six weeks or is still growing, that’s the point where doctors typically recommend a biopsy or specialist referral. Nodes that swell from a cold or flu almost always shrink back down within two weeks as the infection clears.
The “B Symptoms” Doctors Look For
Oncologists use the term “B symptoms” to describe three specific signs that indicate lymphoma may be more active or advanced. These are:
- Unexplained weight loss: losing more than 5% of your body weight over 6 to 12 months without dieting or trying. For someone who weighs 160 pounds, that’s 8 or more pounds.
- Drenching night sweats: not mild perspiration, but sweats severe enough to soak through pajamas and bedsheets. They happen repeatedly and aren’t explained by a warm room or other conditions.
- Persistent fever: recurring fevers without any infection to explain them.
These three symptoms matter because they influence how the cancer is staged and treated. Having even one of them can shift the clinical picture.
Fatigue and Itching
Fatigue from lymphoma isn’t the tiredness you feel after a bad night’s sleep. It’s a deep, persistent exhaustion that doesn’t improve with rest and interferes with daily activities. Many people describe it as feeling drained in a way they’ve never experienced before.
Itchy skin is another symptom that surprises people. It can affect the whole body or just specific areas, and it often has no visible rash. In Hodgkin lymphoma especially, generalized itching is a recognized early symptom. It can be intense and difficult to relieve with typical remedies.
Chest and Breathing Symptoms
When lymphoma develops in the chest, it can form a mass in the space between the lungs called the mediastinum. This is particularly common in a subtype called primary mediastinal large B-cell lymphoma, which tends to affect younger adults. Symptoms include a persistent cough, chest pain, hoarseness, and difficulty breathing or swallowing.
If the mass grows large enough to press on the superior vena cava, the large vein that carries blood from the upper body back to the heart, it can cause a cluster of symptoms known as superior vena cava syndrome. This includes swelling in the face, neck, or arms, shortness of breath, a feeling of fullness or pressure in the head, and sometimes headaches or confusion. This is a situation that needs prompt medical attention.
Abdominal Symptoms
Lymphoma can also develop in the abdomen, either in the lymph nodes there or in organs like the spleen and stomach. When the spleen becomes enlarged, you may feel bloating, a sense of fullness in the upper left side of your belly, or find that you get full after eating very little.
Lymphoma affecting the stomach can mimic common digestive problems: nausea, acid reflux, belly pain or tenderness, general upset stomach, and weight loss. Because these symptoms overlap with so many other conditions, stomach lymphoma is sometimes mistaken for ulcers or gastritis before the correct diagnosis is made.
Skin Changes
A specific type called cutaneous T-cell lymphoma starts in the skin itself and can look remarkably like eczema or psoriasis, which makes it easy to overlook. Early signs include flat, scaly patches that may itch, often on areas that don’t get much sun, like the trunk and upper thighs.
The patches can appear pink, red, brown, or gray on lighter skin. On darker skin tones, they may show up as areas that are lighter than the surrounding skin, which can make them easier to notice in some cases and harder in others. As the disease progresses, the patches may thicken, and lumps can develop on the skin that sometimes break open. In advanced stages, redness and scaling can spread across most of the body, along with thickened skin on the palms and soles.
How Hodgkin and Non-Hodgkin Symptoms Differ
Lymphoma falls into two broad categories: Hodgkin and non-Hodgkin. They share many symptoms, but there are a few differences worth knowing. Hodgkin lymphoma most commonly starts in the upper body, with swollen nodes in the neck or above the collarbone. It tends to spread in a predictable pattern from one group of nodes to the next. It’s also more likely to cause the classic B symptoms, especially in younger patients.
Non-Hodgkin lymphoma is more variable. It can start almost anywhere in the body, including the stomach, skin, or brain, and its symptoms depend heavily on where it develops. There are dozens of subtypes, some aggressive and fast-growing, others so slow that people live with them for years before they’re diagnosed. One unusual symptom fairly specific to Hodgkin lymphoma is pain in the lymph nodes after drinking alcohol, though this is rare.
When Swollen Nodes Are Not Lymphoma
The vast majority of swollen lymph nodes are caused by infections. A cold, the flu, strep throat, an ear infection, or even a minor skin wound near a node can trigger swelling. Infection-related swelling is the most common cause by far, and these nodes typically shrink back to normal within two weeks as your body clears the infection.
The features that make a swollen node more concerning are persistence (still there or growing after two to six weeks), lack of any obvious infection or injury to explain it, large size, painlessness, and the presence of any B symptoms alongside it. A single swollen node with a clear cause, like a sore throat, is almost never lymphoma. Multiple unexplained nodes plus night sweats and weight loss is a combination that warrants prompt evaluation.