Why Do Stomach Cancer Patients Experience Weak Legs?

Stomach cancer is one of the most common types of malignant tumors and ranks second among digestive tract cancers in China. It typically affects individuals over the age of 50, with men being about twice as likely to develop it as women. In the early stages, stomach cancer may not present any noticeable symptoms and patients may feel completely normal. As a result, leg weakness is not commonly associated with early-stage disease. However, in the middle to late stages of stomach cancer, in addition to gastrointestinal symptoms such as upper abdominal pain, acid reflux, and belching, patients may also experience systemic effects, including weak legs. Below are the primary reasons behind this phenomenon:

Nutritional Deficiencies

Due to gastric obstruction and tumor growth, patients may suffer from malnutrition, which can lead to hypoalbuminemia. This condition can cause the breakdown of skeletal muscle in the lower limbs, ultimately resulting in a feeling of weakness in the legs.

Anemia

Chronic, low-level blood loss caused by tumor invasion can lead to anemia. Symptoms of anemia include fatigue and weakness in the lower extremities, which can manifest as leg weakness.

Reduced Physical Activity

In the terminal stages of stomach cancer, patients often develop cachexia and may be bedridden for extended periods. This lack of movement can significantly weaken the leg muscles, contributing to the sensation of leg fatigue and weakness.

Understanding these contributing factors can help in managing symptoms and improving the quality of life for patients undergoing treatment. If you or a loved one is experiencing such symptoms, it is important to consult a healthcare professional for proper evaluation and care.