One year after weaning, milk is still being expressed and the milk is yellowish. Consider the presence of milk due to a high indicator of lactogen in the body, which is also clinically known as overflow, and is also a manifestation of the imbalance of sex hormone levels in the body. If the index is high, there is a possibility that milk may be present, and medication should be considered for treatment, clinically bromocriptine and other drugs can be taken for symptomatic treatment. It is also necessary to combine the MRI of the pituitary gland to observe the presence of lactational adenoma. If there is a lactational adenoma, there will be a high lactogenic index and overflow of milk. Therefore, an MRI of the pituitary gland is needed to make a clear diagnosis. It is important to eat a lighter diet, with more fresh vegetables and fruits, and avoid stimulating foods. Usually, after the medication, the serum lactogen index should be checked again.