Children who simply present with increased thyroid stimulating hormone need to be considered as subclinical hypothyroidism. During childhood, the main manifestation is a delayed growth in height, i.e. the child does not reach the average height and is on the short side. Weight gain does not reach the average standard and is also low. Cognitive aspects of the child may also be affected, with decreased academic performance, rougher skin, and a slower heart rate. If a child is found to have delayed height growth, low weight, and decreased academic performance in reading, he or she should be seen in the hospital to determine if the child is subclinically hypothyroid. If signs and symptoms of subclinical hypothyroidism are present, prompt treatment with Eugenol is needed to replace the thyroid function and reduce complications.