Feeling full but still wanting to drink water

Under normal circumstances, feeling full but still wanting to drink water may be caused by factors such as excessive salt intake, kidney yin deficiency, or gastritis. Patients can receive symptomatic treatment based on the specific cause. Detailed analysis is as follows:

1. Excessive salt intake: Consuming too much salt can induce thirst. A high-salt diet may disrupt the body's fluid balance, increasing internal fluid concentration and thereby stimulating the sensation of thirst. Even when feeling full, the thirst sensation may persist. It is recommended to adjust the diet and avoid overly salty foods.

2. Kidney yin deficiency: According to Traditional Chinese Medicine (TCM) theory, the kidneys are closely related to fluid metabolism. Kidney yin refers to the yin fluids in the kidneys, which play an important role in regulating the body's fluid balance. Insufficient kidney yin may lead to disordered fluid metabolism, manifesting as persistent thirst. Even with a sense of fullness, there may still be a strong desire to drink water. Under medical guidance, patients may take medications such as Zuogui Wan or Zhibai Dihuang Wan. Additionally, consuming foods that nourish the kidneys—such as black sesame seeds, goji berries, and Chinese yam—is recommended.

3. Gastritis: Gastritis is a condition characterized by inflammation of the gastric mucosa. Inflammation can interfere with normal stomach functions, including gastric acid secretion and digestion, potentially causing stomach discomfort and a dry mouth sensation, leading to feelings of thirst. Under medical supervision, patients may use medications such as compound rennet capsules or bismuth potassium citrate tablets, and should also pay attention to dietary hygiene.

Besides the three causes mentioned above, other conditions such as gastric ulcers, hyperthyroidism, or diabetes may also be responsible. Patients are advised to seek timely medical evaluation and treatment.