The short answer
Being told you have lymphoma is overwhelming, and it is normal to feel that way. In the first days, your team confirms the details and stage, explains options like chemotherapy, immunotherapy, targeted therapy, radiation, and sometimes active monitoring, and helps you make a plan. You do not have to decide everything at once, and asking questions is encouraged.
A lymphoma diagnosis is a lot to take in — it is normal to feel shocked or scared.
Early on, your team confirms the type and stage before recommending treatment.
A hematologist-oncologist usually leads care, working with a wider team.
Common treatment options include chemotherapy, immunotherapy, targeted therapy, radiation, and sometimes active monitoring.
Choose how you want to understand this
The full explanation.
"Lymphoma" is a category, and the members differ enormously
The first split is Hodgkin lymphoma versus non-Hodgkin lymphoma. For 2025, the American Cancer Society estimated 8,720 new Hodgkin lymphoma cases and 1,150 deaths in the United States, figures NCI's PDQ summaries repeat. Its non-Hodgkin lymphoma projection was 80,350 new cases and 19,390 deaths.
The second split matters more for your plan. Non-Hodgkin lymphoma divides into indolent and aggressive forms, and the two are managed on opposite logic.
Indolent lymphoma can carry a median survival as long as 20 years. Yet it is usually not curable once it is advanced. Aggressive lymphoma has a worse short-term outlook. But more than 70% of those patients can be cured. Most relapses in aggressive disease occur in the first 2 years after treatment.
Hodgkin lymphoma sits apart again. Up to 90% of newly diagnosed patients can be cured with chemotherapy, radiation, or both.
About 85% of non-Hodgkin lymphomas are B-cell lymphomas. Until someone tells you which subtype you have, none of these numbers is yours.
The biopsy has to be the right kind
The NCI names an excisional biopsy as the preferred approach. That means the whole lymph node is taken out, rather than sampled with a needle.
There is a reason. Lymphoma type depends on the structure of the node, not only the cells inside it. A needle core can miss that pattern. The answer it gives may not be specific enough to treat.
Who reads the slide matters as much as the sample. The NCI specifies a qualified pathologist. If the diagnosis came from a needle biopsy at a general lab, ask two things. Has a hematopathologist reviewed it, and is more tissue needed?
B symptoms are a defined list, not a mood
Your stage will carry an A or a B at the end. The B is assigned for specific findings, each with a threshold:
- Fever of 38 degrees C, which is 100.4 degrees F, or higher
- Drenching, recurrent night sweats
- Unexplained weight loss of more than 10% of body weight in the previous 6 months
Two more symptoms are common but do not create the B label: itching, particularly after a bath or after drinking alcohol, and fatigue.
Weigh yourself and write the number down now. "I've lost some weight" cannot be staged. A documented drop from 180 pounds to 160 over five months can be.
What the workup is looking for
The standard diagnostic evaluation is longer than people expect, and each piece has a job.
Blood work includes a complete blood count with platelets and an erythrocyte sedimentation rate. A chemistry panel covers electrolytes, blood urea nitrogen, creatinine, calcium, AST, ALT, bilirubin, and alkaline phosphatase. Three more are added: lactate dehydrogenase, uric acid, and phosphorus.
Imaging is CT of the neck, chest, abdomen, and pelvis. The alternative is a PET scan using fluorine F 18-fludeoxyglucose, combined with CT. PET-MRI may give equal staging information at 25% of the radiation dose.
Two infection tests are on the list before treatment: HIV testing, and hepatitis B and hepatitis C serology.
That hepatitis B test is not routine paperwork. Rituximab is the antibody used in most B-cell lymphoma regimens. Its label carries a boxed warning for hepatitis B virus reactivation. In some cases that has led to sudden severe hepatitis, liver failure, and death. Confirm the result exists before the first infusion.
Staging follows the Lugano classification
The AJCC adopted the Lugano classification for both Hodgkin and non-Hodgkin lymphoma. It replaced the older Ann Arbor system.
Limited stage covers I and II. Stage I is one lymphatic site. Stage IE is a single site outside the lymph system with no node involvement. Stage II is two or more node regions on the same side of the diaphragm. The diaphragm is the muscle sheet under the lungs. Stage IIE is direct spread from a node into nearby tissue.
Advanced stage covers III and IV. Stage III is node regions on both sides of the diaphragm. Stage IV is spread into one or more organs outside the lymph system. It includes any involvement of the spinal fluid, bone marrow, liver, or multiple lung lesions.
Bulk is recorded separately, and its definition changes by subtype. In Hodgkin lymphoma, bulk means a mass larger than one-third of the chest diameter on CT, or larger than 10 cm. In follicular lymphoma, 6 cm has been suggested. In diffuse large B-cell lymphoma, cutoffs from 5 cm to 10 cm have been used, with 10 cm recommended.
Why you may not need a bone marrow biopsy
In Hodgkin lymphoma, PET-CT has replaced bone marrow biopsy for staging at diagnosis.
The evidence is specific. Bone marrow is involved in about 5% of patients. One meta-analysis pooled 955 patients across nine studies. Fewer than 2% of those with a positive marrow biopsy had only stage I or II disease on PET-CT. Skipping the biopsy in early-stage patients did not change the treatment choice. Focal bone lesions on PET-CT predicted marrow involvement with 96.9% sensitivity and 99.7% specificity.
If a bone marrow biopsy is being scheduled for Hodgkin lymphoma, it is fair to ask what it will add.
Ask about late effects before cycle one, not after
Lymphoma treatment is often curative, which is exactly why the long tail matters.
Fertility. Alkylating agents can impair fertility. Fertility preservation works best before treatment starts, so this belongs in the first week.
Heart. Weakening of the heart's main pumping chamber was a notable late effect in long-term survivors of high-grade non-Hodgkin lymphoma. It showed up in those who got more than 200 mg/m2 of doxorubicin. Ask what your planned total dose is, and whether a baseline heart scan is being done.
Second cancers. The raised risk of a second primary cancer lasts as long as three decades after diagnosis. The list includes lung, brain, kidney, and bladder cancer. It also includes melanoma, Hodgkin lymphoma, and acute nonlymphocytic leukemia.
Immune function. One study followed 21,690 diffuse large B-cell lymphoma survivors in the California Cancer Registry. Rates stayed elevated up to 10 years later. Pneumonia ran 10.8-fold higher, meningitis 5.3-fold, immunoglobulin deficiency 17.6-fold, and autoimmune low blood counts 12-fold. Responses to COVID-19 vaccination are also blunted after B-cell-directed therapy.
That last group is the argument for keeping a primary care doctor involved, and for asking about immunoglobulin levels if infections keep recurring years later.
When to call before the next appointment
Some of these cannot wait for a call back.
Fever of 100.4 degrees F (38 degrees C) or higher, or shaking chills, once treatment has started: CDC calls a fever during chemotherapy a medical emergency and says to call your doctor immediately, at any hour. If you are sent to the emergency room, tell the person checking you in that you are having chemotherapy.
Call 911 or go to an emergency department for:
- New shortness of breath, or swelling of the face and neck with veins standing out. That combination can mean a blocked vena cava.
- Severe back pain with new leg weakness, numbness, or trouble passing urine. That is how cord compression starts, and the window to protect walking is hours.
- Confusion, a bad headache, or a stiff neck.
- Bleeding that will not stop.
Call your care team the same day for:
- A node that grows quickly, or new pain in an existing node.
- Bruising that appears without cause, or bleeding gums.
The five things to write down this week
- The exact subtype name from the pathology report
- The stage, including the A or B letter and whether bulk was noted
- Your lactate dehydrogenase value
- Whether HIV and hepatitis B and C results are back
- Whether fertility preservation has been discussed and with whom
Sources
https://www.cancer.gov/types/lymphoma/hp/adult-hodgkin-treatment-pdq https://www.cancer.gov/types/lymphoma/hp/adult-nhl-treatment-pdq https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=3e5b7e82-f018-4eaf-ae78-d6145a906b20 https://www.cancer.gov/about-cancer/treatment/side-effects/infection https://www.cdc.gov/cancer-preventing-infections/patients/fever.html https://www.cancer.org/research/cancer-facts-statistics.html
Words to know
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Common questions
I was just diagnosed with lymphoma — what should I do first?
Take a breath. In the first days, your team confirms the type and stage and explains your options. You usually do not need to decide anything immediately, so gather information, bring support to appointments, and write down your questions.
How is the stage worked out?
This usually involves a lymph node biopsy to identify the exact subtype, blood tests, and imaging such as a PET/CT scan to work out the stage. The stage describes how far the cancer has spread and helps your team recommend the right treatment.
What treatments are used for lymphoma?
Common options include chemotherapy, immunotherapy, targeted therapy, radiation, and sometimes active monitoring. Which are right for you depends on the type, stage, and your overall health — your team will explain the choices.
Can I get a second opinion?
Yes. Getting a second opinion is common and reasonable, especially before major decisions. It will not offend your team, and many doctors encourage it.
Questions to ask your doctor
Being prepared helps you get the most out of your appointments. Save or print these questions.
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Sources last checked: 2026-08-16 what this meansLast updated: 2026-08-18Next planned review: 2027-07-12
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How this page was created
Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.
Editorial status: Editorial review complete — This page completed Cancer Explained's editorial checks (sources, safety, plain language, duplication). It has not been reviewed by a physician or other healthcare professional.
Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.
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