• Premature adrenarche: Changes in the hormones made by the adrenal gland lead to the development of pubic hair, axillary hair, acne, and adult-type body odor at the time of puberty. When these signs of puberty develop too early, a child most likely has premature adrenarche.
• Phenylketonuria or PKU: Phenylketonuria is a genetic condition where levels of phenylalanine build up in your body. If left untreated, phenylketonuria can affect a person’s cognitive development. Treatment with medications and/or dietary changes helps reduce symptoms.
• Fish Odor Syndrome or Trimethylaminuria/ TMAU: a metabolic condition in which an individual is not able to convert trimethylamine into a compound called trimethylamine N-oxide. Trimethylaminuria has been around for centuries but has only gained scientific recognition and support in the past 30 years.
• Hyperhidrosis: excessive sweating, which means sweating more than normal. It could be genetic. Secondary hyperhidrosis can occur as a result of underlying conditions such as hyperthyroidism and hypertension.
• Other underlying Medical Conditions such as diabetes, kidney or liver problems, or inflammation.

Some home remedies may include:

• It is believed that adding a few spoons of lemon juice to the child’s bathwater can keep the body dry, thereby preventing the growth of bacteria. You may try this if you think it would work for your child.
• Alternatively, some suggest diluting a spoonful of lemon juice with a cup of water and dabbing the child’s armpits with a cotton ball soaked in that liquid. Leave it for ten minutes and then wash it off with water. Do this once a day and see if it could reduce the intensity of body odor.
• Another popular home remedy is apple cider vinegar. Dab a cotton ball soaked in apple cider vinegar on the armpits and other parts of the body for a few minutes before bathing your child. However, talk to your doctor before trying this with the child.
• Rosemary is said to have antifungal and antimicrobial properties and might help in getting rid of the bacteria on your child’s skin (17) You may consider boiling rosemary leaves in a cup of water and adding that to your child’s bathwater. Let the child soak in the tub for at least 15 minutes, and then pat them dry. You can also add rosemary oil to the bathwater.