Blood cancers occur when abnormal cells start growing uncontrollably and interfere with normal blood cell production. They can occur in the bone marrow or the lymphatic system. However, the symptoms can vary based on the type and location. Understanding common blood cancer symptoms can help you recognise unusual changes and seek timely medical advice. Before knowing the symptoms, it’s important to know about the main types of blood cancers.

Which Are the Main Types of Blood Cancer?

There are three types of blood cancer. These include the following:

· Leukaemia: This is the type which starts in the blood-forming tissues, such as bone marrow. Here, bone marrow produces an abnormally large number of white blood cells (WBCs).

· Lymphoma: This is a type which affects the lymphatic system, which produces immune cells (such as lymphocytes) and removes excess fluid from the body. Here, abnormal amounts of lymphocytes (a type of WBC) are produced, called lymphoma.

· Multiple Myeloma: This is the type that develops in plasma cells, which are a type of WBC which play a key role in immune function. Myeloma can affect the immune system and increase susceptibility to infection. Moreover, each type can affect the body differently. Therefore, symptoms may not appear in the same way in every person.

Common Blood Cancer Symptoms

Although different types of blood cancer have different symptoms, they also share some in common. The following are some common warning signs of blood cancer everyone should know:

· Persistent tiredness or weakness

· Recurrent infections

· Unexpected bleeding and easy bruising

· Weight loss without a known cause

· Sudden pain in the bones or joints that might affect daily activities or even sleep (particularly for myeloma)

· Swelling or lumps in different parts

· Unexplained fever

· Shortness of breath

· Heavy night sweats

· Sudden rashes or itching on the skin which do not heal even with treatment

· Unexplained bloating, pain or stomach discomfort

· Pale skin (pallor)

However, having any one or two of these symptoms doesn’t mean that you have a blood cancer. Several other non-cancerous conditions can also show similar symptoms. Thus, it is important to consult a doctor for proper evaluation if you think you persistently experience any of these symptoms.

Risk Factors to Consider

A risk factor is something that increases the risk of developing a particular disease. The risk factors of blood cancer include:

· Age (people older than 60)

· Sex (being male)

· Family history of blood cancer

· Long-term exposure to certain chemicals like benzene or formaldehyde

· Certain infections or diseases (such as autoimmune disease or genetic disorders)

· Weak immune system

· Smoking or tobacco use

· Earlier cancer treatments such as radiation or chemotherapy

Nonetheless, having one or two risk factors doesn't mean that you will get blood cancer. Furthermore, some people develop blood cancer without having any known risk factors.

When should you see a doctor?

It is important to consult a doctor for persistent weakness, recurrent fever, night sweats, easy bruising, etc. Nevertheless, symptoms alone cannot diagnose a disease, as many common infections, nutritional deficiencies and other non-cancerous conditions can cause similar problems. Hence, your doctor may assess your medical history and recommend blood tests or other investigations for confirmation.

Why Early Evaluation Matters

Recognising blood cancer symptoms and diagnosing the disease early can help in different ways. It can improve the treatment outcome and increase the survival rate. An early-stage diagnosis and treatment is also known to reduce the treatment expense. Most importantly, it can help your doctor understand the exact type of treatment option you need and provide appropriate care. Therefore, it is important not to ignore the unusual changes, particularly if they are persistent and interfere with your daily activities.