How many months can baby sit

  After birth, the baby’s skeleton, muscle coordination and other development will gradually mature, but by nutrition, genetics, disease and growth environment and other factors, its development also varies. In general, babies can lift and turn their heads at 1-3 months; they can touch their feet when lying on their backs at 3-6 months, and lift their heads and shoulders when lying on their backs; they can sit and stand while being held at 6-7 months, and they can sit up independently at 7-8 months, and start to learn to crawl.
  I. Factors affecting the development of sitting and standing ability
  The development of baby’s sitting and standing ability is affected by many factors, specific factors include the following.
  1, genetic factors: is the main reason affecting the baby to sit.
  2.Birth condition: premature babies often lag behind full-term babies because of the imbalance between the extensor and flexor muscles of the limbs.
  3, nutritional factors: over-supplementation of zinc and iron deficiency.
  4, other factors: not breastfeeding.
  5, disease factors: iron deficiency anemia, etc.
  Second, the baby’s sitting and standing ability to develop late examination
  For babies with late development of sitting and standing ability, parents should promptly take their babies to the hospital to improve the relevant examination, in order to carry out targeted intervention as soon as possible. Specific examination items are as follows.
  1, physical examination: such as height, weight and other indicators of the examination, to clarify whether the baby is developing normally, whether there is malnutrition and other conditions.
  2, trace element examination: can clarify whether there is a deficiency of calcium, phosphorus and other minerals and whether it affects their bone development.
  3.Neurobehavioral assessment: it can detect the manifestation of brain damage as early as possible and make timely diagnosis or prediction of neurodevelopmental diseases as possible.
  Third, how to train the baby to sit and stand
  In order to promote the flexibility of the baby’s movements, so that the baby can sit and stand on their own in a timely manner, parents can let the baby properly trained to sit and stand, specific training methods are as follows.
  1, pull sitting exercises: suitable for babies over 4 months old; hands gently hold the baby’s shoulders, pull him to sit up, and then gradually transition to pull the baby’s upper limbs and hands.
  2, lean sitting exercises: suitable for 5-6 months old babies, can lean on soft cushions, sofas, can also lean in the arms of parents, lean sitting time to 3-5 minutes is appropriate, should not exceed 10 minutes.
  3, sit alone practice: suitable for about 6 months old baby, with toys in front of the baby’s head shaking above, attract him to support the waist, independent sitting for a few seconds, gradually extend the time, the practice can last 1-2 weeks, to help the baby sit fast and stable.
  Fourth, training baby sit-stand precautions
  Baby is a special group, sometimes a little inattentive, may encounter danger, so in the training of baby sit-stand, pay special attention to safety issues, specific attention to the following.
  1, step by step, not in a hurry.
  2, in a soft sofa or bed training sitting.
  3, the training sit-stand place do not place sharp objects.
  4, parents need to pay close attention and help, to avoid the baby fall injury.