Tummy ache in children may be caused by indigestion, roundworm disease and other conditions, which can be treated by using probiotics, deworming drugs and other methods. 1. Indigestion: Indigestion may cause tummy ache in children, and it is usually recommended to use probiotics such as bifidobacteria to treat it, so as to achieve the effect of pain relief. You can also massage the baby’s abdomen to relieve the symptoms. 2. Ascariasis: Ascariasis can also lead to stomach pain in children, patients may also have diarrhea, vomiting, loss of appetite, teeth grinding, irritability and other symptoms, it is recommended to use propylthiimidazole, mebendazole and other anthelmintic medication for treatment, which can alleviate the symptoms of stomach pain. Children’s stomach pain can be caused by other reasons, such as mesenteric lymphadenitis, appendicitis, etc. If the symptoms continue to ease, or accompanied by other symptoms, you should go to the hospital in a timely manner, active treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication.