Does a child's green stool affect their health?

Patient's question:

Patient Age: Three and a half months
Detailed Condition and Purpose of Consultation: The patient has been defecating green, mushy stools, and has been doing so twice a day. Feeding and sleeping are otherwise normal. The question is whether this will affect health and whether medication is needed?
Duration of Current Illness: One month
Current General Condition: Defecating twice a day, otherwise in good condition
Medical History: No history of illness
Previous Diagnoses, Treatments, and Outcomes: The community doctor said it would naturally improve without hospitalization, but it has been one month and it has not gotten better.

Doctor's answer:

The green stool of babies can mainly be attributed to the following reasons:
1. Hunger-related stool: Due to insufficient feeding, the main components of the stool are intestinal secretions. The stool is dark brown or dark green, occurs frequently but in small amounts, and contains mucus.
2. Poor digestion: The stool is yellow-green, watery, and of inconsistent consistency, occurring frequently.
3. Possible stomach cold: Pay attention to ensuring the baby’s abdomen is not exposed, as a cold stomach can also cause discomfort and lead to green stools. For formula-fed babies, the choice of formula is also very important. When selecting formula, it is essential to ensure that the levels of iron and other minerals and trace elements are appropriate, as an imbalance can also be a significant cause of green stools.
My baby’s stool has been quite good so far, with regularity and the right color. We are using "Parents’ Choice," which has a formula similar to breast milk in taste and texture, and it’s quite close. It also includes prebiotics, which help with digestion.