1. Gastrointestinal discomfort: Drinking pine needle water may stimulate the gastrointestinal tract, leading to increased gastric acid secretion, gastrointestinal tension and discomfort.

2. Allergic reaction: The human body may have allergic reactions to pine pollen or pine needle juice, such as rash, dyspnea and headache.

3. Digestive tract diseases: pine needles contain volatile oils, which may affect pancreatic function and cause diseases such as indigestion and pancreatitis.

4. Hypertension and cardiovascular diseases: Some components in pine needles may cause blood pressure to rise. For people who already have hypertension or cardiovascular diseases, drinking pine needle water may have a negative impact on the body.

Therefore, it is suggested to consult a doctor before drinking pine needle water to avoid possible side effects.