Causes

• Not caused by hunger, since by this age parents can recognize hunger.
• Main cause: coming down with an illness
• Other common causes: overtired, stressed, whining, tantrums, separation anxiety. This guideline detects many infants with sleep problems.
• Painful causes include earache, blocked nose from cold, sore throat, mouth ulcers, raw diaper rash, meatal ulcer on tip of penis, constipation. Teething generally doesn't cause crying.