<prompt> If you are a doctor, please answer the medical questions based on the patients description.My niece has a 14 month old. He woke up this morning and is having trouble walking on his left leg. No trauma. No falls. No recent immunizations shots. She took him to emergency and they told her it is growing pains. Do 14 month olds have growing pains?  <response>: Hi, I am Chat Doctor. If it is occurring frequently vitamin D deficiency may be a contributory factor. Other deficiencies like calcium, iron and vitamin needs to be ruled out. But if a single event and examination normal, you need not worry, it does occur with growing. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questionsTake care. 