Is it normal for a 7-month-old baby to show no interest in any toys or objects?
Generally speaking, whether a 7-month-old baby shows interest in toys and objects is considered normal or not should be comprehensively evaluated based on the baby's specific behaviors and developmental progress. If there are any abnormal signs, it is recommended to seek medical advice promptly. The detailed analysis is as follows:

A baby who actively reaches for toys, focuses visually while manipulating them, shows curiosity toward brightly colored or sound-producing items, and is willing to explore new things is demonstrating typical development. At 7 months of age, babies are in a critical stage of sensory and fine motor skill development, and showing interest in surrounding toys and objects is a common and expected part of this process.
If a baby consistently shows no reaction to toys or objects—failing to reach even when items are presented, having unfocused gaze, lacking attention to sounds or vivid colors, or even refusing to engage with new stimuli—this may indicate developmental concerns. Such cases warrant attention for possible developmental delays or issues related to sensory processing or the nervous system.
In daily care, offer the baby safe, simply designed toys made from non-toxic materials. Encourage engagement by gently shaking toys or demonstrating how to play with them. Expose the baby frequently to natural environments and a variety of stimuli, interact patiently, and avoid forcing interaction with items the baby seems uninterested in. If the baby continues to show disinterest and also exhibits delays in gross motor milestones such as head control or rolling over, timely medical evaluation is necessary.