A month old baby constipation, divided into functional constipation, organic constipation, different causes of treatment is not the same, mainly including drug treatment and surgical treatment. Functional constipation: artificially fed children are prone to functional constipation, the proportion of milk powder should be carried out in accordance with the instructions, drink warm water as appropriate, soften the stool, you can massage the abdomen in a clockwise direction, you can also orally probiotics such as bifidobacteria to regulate the intestinal bacteria, and still do not alleviate the problem, you can consider changing the milk powder. Breastfed babies should pay attention to the baby’s diet, try to eat light and easy to digest a little, do not eat spicy and stimulating food, may help relieve the symptoms. Organic constipation: generally need surgical treatment, before surgical treatment can be conservative treatment, through plugging the open plug, 0.9% saline enema or oral lactulose to relieve constipation. To sum up, constipation has different causes and different treatments, and a one-month-old baby with constipation should lead the child to the pediatric clinic in time to see a doctor. The above medications should be used in accordance with medical advice.