Infant growth: What's normal? - Mayo Clinic
2023年1月11日 · A baby's head size is measured to get an idea of how well the brain is growing. During the first month, a baby's head may increase about 1 inch (2.5 centimeters). But on average, the skull grows about 0.4 inches (1 centimeter) each month. Your baby's health care provider will track growth at well-baby exams.
Infant development: Birth to 3 months - Mayo Clinic
2023年2月10日 · A lot happens during your baby's first three months. Most babies reach certain milestones at similar ages, but infants take their own path as they develop. Expect your baby to grow and develop at your baby's own pace. Keep in mind that a baby born early, also called premature, may have a delay in some milestones.
Fetal development: The 1st trimester - Mayo Clinic
2022年6月3日 · Seven weeks into your pregnancy, or five weeks after conception, your baby's brain and face are growing. Depressions that will give rise to nostrils become visible, and the beginnings of the retinas form. Lower limb buds that will become legs appear and the arm buds that sprouted last week now take on the shape of paddles.
Fetal macrosomia - Symptoms & causes - Mayo Clinic
2022年6月3日 · If you've previously given birth to a large baby, you're at increased risk of having another large baby. Also, if you weighed more than 8 pounds, 13 ounces at birth, you're more likely to have a large baby. Maternal obesity. Fetal macrosomia is more likely if you're obese. Excessive weight gain during pregnancy.
Infant development: Milestones from 4 to 6 months - Mayo Clinic
2023年2月10日 · Your baby will probably grasp your finger, a rattle or a soft object. Anything within reach is likely to end up in your baby's mouth. You might notice your baby pulling objects closer with a raking motion of the hands. Clearer vision. Your baby is starting to be able to tell the difference between shades of reds, blues and yellows.
Blighted ovum: What causes it? - Mayo Clinic
2023年10月17日 · But when the embryo stops growing and hormone levels fall, pregnancy symptoms often fade. At this point, you might have mild cramping or pelvic pain and light spotting or bleeding from the vagina. An ultrasound of the uterus will show an empty fluid-filled structure, called a gestational sac, with no embryo inside it.
Microcephaly - Symptoms & causes - Mayo Clinic
2022年5月26日 · Microcephaly (my-kroh-SEF-uh-lee) is a rare neurological condition in which an infant's head is much smaller than the heads of other children of the same age and sex. Sometimes detected at birth, microcephaly often occurs when there is a problem with brain development in the womb or when the brain stops growing after birth.
Baby's head shape: Cause for concern? - Mayo Clinic
2022年3月10日 · Babies are born with soft areas on their heads called fontanels. The skull bones in the soft spots haven't yet grown together. The soft spots allow a baby's relatively large head to move through the narrow birth canal. They also accommodate a baby's …
Craniosynostosis - Symptoms and causes - Mayo Clinic
Craniosynostosis (kray-nee-o-sin-os-TOE-sis) is a disorder present at birth in which one or more of the fibrous joints between the bones of your baby's skull (cranial sutures) close prematurely (fuse), before your baby's brain is fully formed. Brain growth continues, giving the head a misshapen appearance.
Discolored baby teeth: A cause for concern? - Mayo Clinic
2024年7月31日 · Baby teeth, also called primary teeth, can become discolored for many reasons. They include: Not brushing well enough. If baby teeth aren't brushed well, bacteria and food debris called plaque might form on the teeth. This can cause them to be discolored. Medicine use. Infant medicines that have iron might cause stains on baby teeth.