# Hodgkin lymphoma
What is it
Hodgkin lymphoma is a cancer of the lymphatic system — the network of blood vessels and lymph nodes that is part of your immune system. In this disease, certain white blood cells (lymphocytes) grow uncontrollably and become malignant cells. These diseased cells accumulate especially in lymph nodes, which are located in the neck, armpits, chest, and abdomen.
What is distinctive about Hodgkin lymphoma is that it is often not present in all nodes at the same time — it usually grows gradually from one node to the next. This makes it different from many other lymphomas. The disease occurs in both children and adults and young people, with a small peak in the twenties to thirties and a larger peak in the elderly.
Causes
The exact cause of Hodgkin lymphoma is not entirely clear. Researchers do know that certain factors can increase the risk:
- **Epstein-Barr virus (EBV)**: This virus, which also causes mononucleosis, probably plays a role, especially in certain forms. However, not everyone who has had EBV develops Hodgkin lymphoma.
- **Immunity**: A weakened immune system — due to HIV, certain medications, or inherited causes — increases the risk.
- **Family history**: In rare cases, Hodgkin lymphoma occurs more frequently in families, but this is rarely inherited.
- **Age**: The disease develops more often around the third and fourth decades of life, and again more often after the sixtieth year.
It is important to know that Hodgkin lymphoma is not contagious and has not been caused by what you eat, drink, or do.
How the disease progresses
Hodgkin lymphoma usually grows fairly gradually. The disease usually starts in one lymph node group and can then gradually spread to other nodes — to the chest, abdomen, or to both sides of the waist.
**Staging** is important for understanding where you stand:
- **Stage I**: Disease in one lymph node area
- **Stage II**: Disease in two or more lymph node areas on the same side of the waist
- **Stage III**: Disease on both sides of the waist
- **Stage IV**: The disease has spread outside the lymphatic system to organs such as the liver, lungs, or bone marrow
Doctors also determine whether so-called "B symptoms" are present — fever, unexplained night sweats, or weight loss. This provides information about how active the disease is.
In approximately 85-90% of people, Hodgkin lymphoma is detected at an early stage (I or II). This is because swollen nodes in the neck or armpit can often be felt, which causes people to see a doctor sooner. Also, modern imaging techniques are good at detecting this disease.
Symptoms by phase
**Early stages:**
In many people, there are no symptoms at first. The disease is sometimes discovered by chance during examination for another problem. Others notice:
- Swelling in the neck, armpit, or groin — usually painless, sometimes with mild pain
- These swellings do not change in size quickly
- Sometimes itching
**Advanced stages:**
As the disease progresses, the following complaints may develop:
- Fatigue and lack of energy
- Fever without a clear cause, especially in the evening
- Severe night sweats (sometimes so bad that clothing needs to be changed)
- Unexplained weight loss
- Itching all over the body
- Possible pain in nodes after alcohol consumption (rare, but typical of Hodgkin)
If the disease affects organs, symptoms may also result from that — for example, shortness of breath if the lungs are involved, or abdominal complaints.
What it means for daily life
The impact on daily life depends heavily on the stage and the treatment plan.
**During examination phase:**
For many people, it can be very unsettling when you have just learned that your nodes may be examined. You undergo various scans and possibly a biopsy (tissue sampling). This can take weeks and means multiple hospital visits.
**During treatment:**
This is the period with usually the greatest consequences:
- Chemotherapy can cause nausea, fatigue, hair loss and increased susceptibility to infection. Most treatments take place in treatment cycles — you go to the hospital for treatment, then have several weeks of rest until the next cycle.
- Radiation can cause local side effects and fatigue.
- Many people can continue working (partially) with support from their team, but others need complete rest.
- Social life is disrupted — friends, sports, normal routines are interrupted.
**Mental wellbeing:**
The diagnosis itself can be shocking, although many people say that knowing "it is cancer, but it is curable" helps make it emotionally bearable. Stress, anxiety and sometimes depression are normal.
**After treatment:**
For many patients, a phase of careful recovery follows successful treatment. You don't feel like yourself right away — fatigue can last weeks to months. You will have regular follow-up appointments with your doctor.
Outlook
The outlook for Hodgkin lymphoma is generally much better than for many other forms of cancer.
**General figures (global population level, recent data):**
In adults, five-year survival is approximately 85-90%, depending on the country and availability of treatment. For early stages this is even higher — up to 95% or more. For young people and children, the figures are also promising, sometimes up to 90% or higher.
**What determines the outcome:**
- The stage (early is better than advanced)
- Age at time of diagnosis (younger people do better on average)
- Whether certain risk factors are present (certain characteristics of the tumour cells)
- Whether the disease responds to the first treatment
**Important:**
These figures tell you nothing about one individual. Your own situation can be very different. Your doctor can discuss your specific prognosis with you based on your data.
It is also good to know that treatment options are available for recurrence of Hodgkin lymphoma — it is not immediately "game over" if the disease returns, although it does become more complex.
Frequently asked questions
**Can you transmit Hodgkin lymphoma to others by touching?**
No, absolutely not. This is not an infectious disease. Your family, friends and colleagues cannot become infected.
**What is the difference between Hodgkin lymphoma and other lymphomas?**
There are approximately twenty different types of lymphomas. Hodgkin lymphoma is actually relatively rare — many lymphomas are "non-Hodgkin lymphomas". The difference lies mainly in the type of diseased cell, how the disease spreads (Hodgkin spreads more gradually and in an orderly fashion) and the treatment also differs.
**Do you receive treatment in the hospital or can you be treated at home?**
This depends on the treatment plan. Much chemotherapy is given in the hospital, sometimes as day treatment (you go home the same day). Some medicines can be taken or given at home. Radiation usually takes place at the radiotherapy centre, several times a week, but without overnight stays.
**How long does the treatment last?**
This varies greatly. Early stages may be managed with several months of chemotherapy, possibly combined with radiation. Advanced stages can take 6-12 months or longer. Your doctor will tell you this at the beginning of your treatment.
---
_This information never replaces a doctor's judgment. Always discuss your situation with your own healthcare provider._