Which side effects can be permanent?
The most clearly documented permanent side effect from these studies is damage to the eyes, specifically irreversible loss of night vision. A 2021 study of dermatologists in Egypt noted that ocular side effects range from 'mild reversible eye dryness to severe irreversible loss of night vision' [2]. This means that while dry eyes usually get better, the damage to the retina that causes night blindness can be permanent. The same study also mentions corneal ulcers as a possible severe outcome [2].
Another potential permanent effect involves the joints. A 2021 cross-sectional study of 94 patients found that 11.7% developed sacroiliitis—inflammation of the joints where the spine meets the pelvis—detected by MRI [3]. Sacroiliitis can become a chronic, lifelong condition if it does not fully resolve. The study also found that low back pain was very common (70.2% of patients), and while most cases were mechanical (temporary), a significant portion (37.8%) had inflammatory pain that could signal lasting joint issues [3].
Importantly, a 2024 study on combining isotretinoin with microneedling radiofrequency explicitly stated there were 'no permanent side effects of scarring or hypo and hyperpigmentation' from the procedure itself [4]. This suggests that permanent skin damage is not a typical risk of the drug alone.
What about the common side effects—are they permanent?
No, the most common side effects are temporary and resolve after stopping the medication. A large 2024 survey of 548 patients in Palestine found that the most predominant side effects were cracked, dry lips and dry skin (xeroderma), affecting 96.2% of patients [1]. These are classic, expected effects that go away within weeks of finishing treatment. The same study also reported that 12% of participants experienced depression, but it did not specify whether this was permanent—and in clinical practice, depression related to isotretinoin usually lifts after the drug is stopped [1].
A 2025 study comparing single versus divided doses of isotretinoin found that side effects like conjunctivitis (pink eye) and facial erythema (redness) were more common with single daily doses, but again, these are reversible [5]. The study's focus was on managing temporary side effects to improve tolerability, not on permanent harm [5]. Even the muscle and joint aches (myalgia in 53.2% and arthralgia in 47.9% of patients in one study) are typically reversible, though the study noted that low back pain could be a sign of the more serious, potentially permanent sacroiliitis [3].
How common are permanent side effects, really?
Permanent side effects are uncommon, but the exact rate is hard to pin down from these studies alone because they were not designed to track long-term outcomes. The most concerning permanent effect—irreversible night vision loss—was described by dermatologists as a known risk, but the study did not report how many patients actually experienced it [2]. This suggests it is rare enough that it is not routinely seen in every practice.
For joint damage, the 2021 study found that 11.7% of patients had sacroiliitis on MRI, but it did not follow them long enough to confirm how many cases became permanent [3]. The study did note that the risk of low back pain was dose-related, meaning higher cumulative doses increased the chance of this side effect [3]. This is a useful warning: the longer you are on the drug or the higher the dose, the more likely you are to experience joint issues that could become lasting.
Across all five studies, the consistent message is that serious permanent harm is possible but not typical. The vast majority of patients will only experience temporary, manageable side effects like dry skin and lips [1][5]. The key is close monitoring by a doctor who knows to check for early signs of eye or joint problems.
About These Sources
This answer is built on 5 peer-reviewed studies — published from 2021 to 2025, 3 from 2024 or later, 2 in Q1–Q2 journals — selected as the most relevant from 5 studies that passed quality screening, drawn from 41 papers retrieved from a database of over 500 million.
Sources used in this answer
Practices, Efficacy, and Reported Side Effects Associated with Isotretinoin Treatment in Palestine
In a cross-sectional survey of 548 patients in Palestine, the most common side effects were temporary (cracked dry lips and dry skin in 96.2%), and 12% reported depression; no permanent side effects were quantified.
Dermatologists’ Knowledge and Attitude Toward Isotretinoin Ocular Side Effects in Egypt
A survey of 111 dermatologists in Egypt found that while 94.6% knew about ocular side effects, the paper explicitly states these can range from reversible dry eye to 'severe irreversible loss of night vision' and corneal ulcers.
Analysis of musculoskeletal side effects of oral Isotretinoin treatment: a cross-sectional study.
In a cross-sectional study of 94 patients, 70.2% had low back pain, 11.7% had sacroiliitis on MRI (a potentially permanent inflammatory joint condition), and the risk was dose-related.
Efficacy and Safety of Oral Isotretinoin and non Insulated Fractional Microneedling Radiofrequency in Acne Treatment.
A study of 48 patients combining isotretinoin with microneedling radiofrequency reported 'no permanent side effects of scarring or hypo and hyperpigmentation' from the procedure, suggesting permanent skin damage is not a typical drug risk.
Efficacy and side effect profiles of single versus divided doses of isotretinoin in acne vulgaris.
A retrospective cohort study of 60 patients comparing single vs. divided doses found that side effects like conjunctivitis and facial erythema were more common with single doses but were reversible; no permanent effects were reported.