Ear Problems. Ear problems are often caused by an infection. However, other conditions may also cause ear pain or discomfort. Follow this chart for more information about ear problems. Our trusted Symptom Checker is written and reviewed by physicians and patient education professionals. Find a possible diagnosis by choosing a symptom and answering a few simple questions.
Body hair really gets going during puberty. Some boys will start to notice hair growing on their face around the chin, on the cheeks, and above the lip. Also, hair grows on the chest, the armpits, and even down there in the pubic region.
Boys. In boys, between the ages of about 12 and 15, the pituitary gland produces LH and FSH, which together stimulate the production of the sex hormones. The testes start to produce testosterone which begins the development of secondary sexual characteristics.he ovaries start to produce oestrogen and progesterone which begin the bodily changes that happen during puberty. The changes, known as secondary sexual characteristics, are: 1  The breasts develop. 2  The hips and thighs widen.