What are some signs that a therapist may have poor boundaries with their clients?

Struggling with fantasies of deeper connections with clients, whether sexual or parental or other intense or intimate relationships beyond psychotherapy.

Sense of competition with persons who are important in the client’s life.

Failing to mention the client in supervision/consultation, out of fear the supervisor/consultant will advise return to ordinary healthy boundaries.

Is it considered rude to comment on someone's weight? Is it simply stating a fact?

Session-expressed curiosities about client details not relevant to the therapy.

Obsessing about clients outside of work hours.

Serious disappointment when the client cancels a session.

Which is more effective for joint pain relief: a red LED light or an infrared heat lamp? Is there a noticeable difference in the speed of pain relief between the two?

Routinely going over the time limit with certain patients, compromising the time for the next client.

Disclosing feelings, fantasies, and experiences to the client in ways not related to the work the client is engaged in.

General Introduction to Boundaries from Panahi Counseling:

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Eager anticipation (or anxious anticipation) of the next session in ways that distract.

Off the top of my ancient head:

Frequent phoning or texting of clients to “check up on them and make sure they’re OK.”

What did Rama tell Sita about Kaliyug?

These items can happen fleetingly, briefly, in any therapy, but if they’re frequent, it’s definitely time for the therapist to get some good, solid supervision/consultation.