As a cancer surgeon I very often get patients with swollen lymph nodes coming to my clinic to enquire whether it is cancer! The fear is genuine. However, most often lymph node enlargement is due to causes other than cancer like infections. However, it is a symptom that should not be ignored.
What are lymph nodes?
Cancer is treated based on cancer treatment protocols which are specific for a given stage of cancer. Most cancer patients will need at least two types of treatment out of three main modalities; surgery, chemotherapy and radiotherapy.
Surgery is the most efficient way to cure cancer. The idea of surgery is to remove all visible cancer. If that is not possible, which can happen sometimes, then surgery fails to serve its purpose. In most of the cases when surgery is adequate, despite technological advances there is no way to know if there are cancer cells left at the end of treatment or surgery. All these cases are treated based on the stage of cancer. There are protocols for almost every stage of cancer as to how to treat. These protocols are based on extensive research or consensus.Seeking treatment at specialized cancer hospitals in India can ensure adherence to these protocols and access to comprehensive care options.
There are some cancers where radiation and chemotherapy are offered as main treatments. In these situations, a follow-up with scan (like PET CT) would be essential to assess the response.
What are the common causes of lymph node enlargement?
Any cancers that spread in the body can cause the lymph nodes to swell and become hard. When cancer from one area spreads to the lymph nodes, the survival rate decreases.
Lymphoma, which is a cancer of the lymph nodes themselves, also causes the lymph nodes to swell. Lymph nodes that are swollen but not painful can be signs of a serious problem, such as cancer.
Quite often I get patients worried about enlarged nodes in armpit or neck. Mostly these are painful nodes due to mild infection. Most commonly the armpit nodes are due to hair removal over the arms and armpit, which leads to very minor infection. Some medications and allergic reactions to medications can cause the lymph nodes to swell. Anti-seizure and antimalarial drugs can also cause lymph nodes to swell. Sexually transmitted infections, such as syphilis or gonorrhea, can cause the lymph nodes in the groin area to swell.
What should I do when I feel enlarged lymph nodes?
Most of the enlarged lymph nodes are not cancers. However, it is advisable to see a doctor when you find enlarged nodes that do not go away in 2 weeks, but no need to panic. Nodes that are rapidly increasing in size over weeks are a warning sign.
Swollen lymph node glands may become smaller on their own without any treatment. In some cases, the doctor may wish to monitor them without treatment. In the case of infections, you may be prescribed antibiotics or antiviral medications to eliminate the condition causing the swollen lymph nodes. Your doctor might also give you medications to combat pain and inflammation. Your doctors may advise you tests like ultrasound scan and biopsy (if needed).
Doctor, can you make these nodes go away?
Lymph nodes enlarge in size as their work increases, that is filtering the body fluids. When there is an infection or injury, they need to filter the more to clear those. The nodes are not the problem, they are the solution. So, there is no point in getting rid of them. We remove them in cancer surgery as they filter cancer cells and store them. Removing them will give better chance of cure.
If you have swollen lymph nodes and no other symptoms, consult your doctor. Your doctor will discuss which treatment option is best for you.