 [ Symptoms ] i get spinal injections for pain relief but i still have terrible pain [ Disease ] well the baby can be comparitively smaller but not necessarily dwarf but for confirmation amniocentesis can be done baby measuring less than 18 inches at birth is generally considered to be having some skeletal dysplasia so you need to discuss with your gynaecologist who can check for factors like head size amniotic fluid around baby along with limb size and can also discuss about amniocentesis to proceed further hope this helps