Are you talking about a baby or a young girl. If she has underarm odour this is an early sign of the onset of puberty. As she is only 7 years old she is very young for this, so she may be developing what is called precocious puberty. It is best to see your doctor just to be sure that there is no need for concern.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.