Blood Cancer Symptoms: When to See a Doctor?

Blood cancer, also known as haematological malignancy, affects the production and function of blood cells in the body. This type of cancer develops when the blood cells don't develop, divide, or die as they should. Blood cancers can be divided into three categories: leukaemia, lymphoma, and myeloma. Symptoms of blood cancer can be subtle or non-existent in the early stages, but they can become quite severe in advanced stages. Early detection and treatment can lead to better outcomes, which is why it's important to know the signs of blood cancer.

Fatigue and Weakness

One of the most common symptoms of blood cancer is fatigue. If you're feeling tired and weak for no reason, it's important to see a doctor. Fatigue might be caused by a deficiency in red blood cells. Red blood cells are responsible for carrying oxygen throughout the body, so if you don't have enough red blood cells, you might feel tired and weak.

Unexplained Weight Loss

Losing weight without any effort can be a sign of blood cancer. This symptom is often associated with lymphoma and can be an early warning sign. If you're losing weight without trying, it's essential to see a doctor.

Excessive Sweating

Blood cancer symptoms sometimes include excessive sweating, especially at night. If you're experiencing night sweats, it's crucial to see a doctor. Night sweating could be a sign of infections, hormonal changes, or blood cancer.

Easy Bruising and Bleeding

Blood cancer affects the clotting ability of blood cells. This can result in easy bruising or bleeding. For example, you might bruise more easily or find that cuts take longer to stop bleeding. If you're experiencing these symptoms, it's essential to see a doctor.

Enlarged Lymph Nodes

Blood cancer symptoms can also include swelling of lymph nodes, a part of the body's immune system. If you have enlarged lymph nodes, it's essential to see a doctor. This symptom could be a sign of lymphoma, a type of blood cancer that affects the lymphatic system.


Blood cancer can be difficult to diagnose because its symptoms are often subtle. It's crucial to see a doctor if you're experiencing unusual symptoms like fatigue, weight loss, excessive sweating, easy bruising and bleeding, or enlarged lymph nodes. If you're concerned about blood cancer, talk to your doctor about your symptoms as soon as possible. Early detection and treatment can make a significant difference in the outcome of blood cancer.