What are the implications of 'comments' in the Thai immigration system and how can they affect future entries?

🇹🇭 Has anyone experienced “comments” in the Thai immigration system?

Some travelers have reported receiving shorter stays or facing stricter questioning at the border after entering Thailand multiple times within a short period. In certain cases, visa agencies later confirmed that a “comment” (internal note) had been added to the traveler's immigration profile.

These comments are not visible and not officially communicated, but immigration officers can see them when scanning the passport. They may be triggered by recurring patterns such as:

Frequent entries and exits within a short timeframe

Short stays outside Thailand between entries

Behavior that resembles visa runs or long-term stays without the proper visa

This raises questions about how such comments might affect future entries or visa applications, and whether they can be viewed or removed.

Some common suggestions include:

Applying for an ED visa, which is possible if at least 45 days remain on the current permission to stay

If only 20 days remain, it may be too late to apply from within Thailand — applying from Cambodia might be safer

Using the e-Visa system, if applicable

Waiting a few months before returning, to allow the situation in the system to “cool off”

Any experiences or advice would be greatly appreciated. Thanks in advance!