The most obvious symptoms of Hashimoto’s thyroiditis in children and young people can be slow growth and gaining too much weight even though they are eating healthily. It can also delay the onset of puberty, although in extreme cases it can cause signs of puberty to start at a very early age – this is known as precocious puberty. There is a long list of symptoms and signs associated with hypothyroidism although not everyone will have all of them. These include:

  • feeling tired and sleepy all the time
  • finding it hard to concentrate
  • feeling cold even in a warm place
  • dry and coarse hair
  • dry and thinning hair
  • a hoarse or croaky voice
  • muscle weakness, cramps and aches
  • pins and needles in the fingers and hands
  • a puffy face and bags under the eyes
  • slow speech, movement and thoughts
  • slow mood or depression
  • memory problems
  • a slow heart beat
  • slightly raised blood pressure
  • raised cholesterol
  • constipation