Recognizing the Signs: Symptoms of Non-Hodgkin Lymphoma

The symptoms of Non-Hodgkin Lymphoma (NHL) can be diverse and sometimes mimic common illnesses like the flu or a persistent cold. Because NHL is a cancer of the immune system, it can appear anywhere in the body where lymph tissue is located, leading to a wide range of physical signs ^[1][2].

Understanding “B Symptoms”

In the world of lymphoma, doctors pay close attention to a specific group of signs known as B symptoms. These are systemic symptoms—meaning they affect your whole body—and they play a critical role in determining your disease stage and prognosis ^[3].

The three classic B symptoms are:

1. Fever: Recurrent fevers (usually over 100.4°F or 38°C) that occur without an obvious infection ^[3].
2. Drenching Night Sweats: These are not just feeling warm; they are often described as “soaking” or “drenching” sweats that require you to change your pajamas or bedsheets ^[3].
3. Unintentional Weight Loss: Losing more than 10% of your body weight within six months without trying (e.g., without dieting or increased exercise) ^[3].

Please note that it is very common not to notice these symptoms right away, or to attribute them to stress or a minor illness. This does not mean you “failed” or waited too long to seek care; these symptoms are simply characteristics of the disease ^[3].

The presence of these symptoms often suggests that the lymphoma is more metabolically active or aggressive, and your doctor will use this information to help tailor your treatment plan ^[4][3].

Lymphadenopathy: The Most Common Sign

The most frequent sign of NHL is lymphadenopathy, which is the medical term for swollen lymph nodes ^[1].

• Location: You might feel lumps in your neck, armpits, or groin ^[5].
• Feel: Unlike the swollen nodes you get with a throat infection, lymphoma nodes are typically painless, rubbery, and may feel fixed in place rather than movable ^[5].
• Variation: In indolent (slow-growing) subtypes like Follicular Lymphoma, these nodes may be widespread but cause no pain, sometimes remaining unchanged for months or years ^[4][6].

Extranodal and Overlooked Symptoms

Because lymphocytes travel throughout the body, NHL can develop outside of the lymph nodes. This is called extranodal involvement ^[1][2]. Symptoms in these cases depend entirely on where the lymphoma is located:

• Abdomen: Swelling or pain in the belly, feeling full after only a small meal, or nausea can occur if the lymphoma affects the spleen, liver, or gastrointestinal tract ^[5][7].
• Chest: A persistent cough, shortness of breath, or a feeling of pressure in the chest may happen if nodes in the middle of the chest (the mediastinum) become enlarged ^[8].
• Skin: Itchy skin, reddish or purplish patches, or lumps under the skin can be signs of cutaneous (skin) lymphoma ^[9].
• Neurological: Headaches, weakness, or personality changes can occur in rare cases where the lymphoma involves the brain or spinal cord (Primary CNS Lymphoma) ^[8].
• Severe Fatigue: An overwhelming, persistent tiredness that does not improve with rest is a very common but often overlooked symptom ^[10].

Why Symptoms Vary

The speed at which symptoms appear often tells a story about the subtype. Aggressive lymphomas, such as Diffuse Large B-Cell Lymphoma (DLBCL), tend to cause symptoms that appear rapidly over weeks, often accompanied by B symptoms ^[11][12]. Indolent lymphomas may be discovered “by accident” during a routine physical or scan because they often cause few to no symptoms initially ^[4][13].