Unexplained Weight Loss – Could It Be A Sign Of Cancer?

Unexplained Weight Loss – Could It Be A Sign Of Cancer?
June 24, 2025 by adminFor many, losing weight without trying will seem like a good thing. But if you are not eating less, being more active, and are still losing weight, it could mean something serious. In fact, in some cases unexplained weight loss may be one of the first indications of cancer.
The good news is that there are often logical explanations behind the weight loss, which we’ll look at below, along with when you need to be seen by your doctor.
What is Unexplained Weight Loss?
Unexplained weight loss means you are losing weight but there isn’t an obvious reason why. It suggests that you haven’t made changes to your eating, activity, or lifestyle to explain your weight loss. If you have lost more than five percent of your body weight in six months without trying to lose weight, doctors will consider it an alarming weight loss amount.
There are some common reasons behind this type of weight loss including, but not limited to, infections, stress, and diet. But if it keeps happening, it is worth checking in with a doctor.
How Can Cancer Cause Weight Loss
Cancer can lead to weight loss even before you know you have it. Some types of cancer change how your body uses energy. Others may affect your hunger, digestion, or how well you take in nutrients from food.
Here are some common reasons why cancer can cause weight loss:
- The body uses more energy than usual
- You feel less hungry and eat less
- Food is not absorbed properly in the stomach or intestines
- Some cancers cause swelling inside the body, which also affects weight
This type of weight loss is often seen in cancers of the stomach, lungs, pancreas, or food pipe. But it can happen with other types of cancer too.
Other Signs to Watch Along With Weight Loss
Losing weight does not always mean cancer. But if it comes with other signs, it is better to talk to a doctor.
These signs include:
- Feeling tired all the time
- Fever or sweating at night
- Eating less than usual
- Ongoing pain
- Changes in how often you pass stools
- Finding a new lump or swelling
These signs may seem small, but they should not be ignored.
If you have been experiencing unexplained weight loss, consult your doctor. Don’t ignore unexplained weight loss, even just a few kilos. It’s preferred to identify any cause early, suggesting blood tests, scans or other tests is always the best approach.
They are typically fast and simple, and will often get your answer quickly. If the cancer is detected early, there will be increased likelihood of successful treatment.
If you are experiencing unexplained weight loss, don’t ignore it. Finding out early can take away the anxiety, and take the treatment right away . At Sugam Hospital, we take the time to evaluate your symptoms and recommend next steps based on your condition. As one of the best cancer hospital in Chennai, we provide timely treatment options for individuals who may be experiencing or at early stage symptoms of serious illness. You don’t need to manage your symptoms alone, We are to help.