Doctor Issues Warning About Overlooked Mounjaro Side Effect
A doctor has cautioned that weight loss injections are contributing to a surge in individuals seeking treatment for haemorrhoids.
Medications such as Mounjaro and Ozempic, initially intended for diabetes management, have gained popularity for their ability to induce rapid weight loss by suppressing appetite.
However, these injections often come with adverse effects, ranging from nausea and constipation to, in severe instances, potentially life-threatening organ damage.
Increased Haemorrhoid Cases Linked to Weight Loss Drugs
Dr. Ross Perry, the medical director of Cosmedics Skin Clinics in London and Bristol, has observed a growing number of patients on GLP-1 agonists (the class of drugs Mounjaro and Ozempic belong to) reporting 'significant bowel changes,' including haemorrhoids.
Dr. Perry also noted that many patients have increased their exercise and weight training, per NHS guidance to prevent muscle loss, which may also exacerbate haemorrhoids due to increased straining.
Understanding Haemorrhoids
Haemorrhoids, also known as piles, are characterized by small lumps containing enlarged blood vessels located inside or around the anus.
Straining during bowel movements puts pressure on the veins in the lower rectum, leading them to bulge and form haemorrhoids.
Previously, doctors have cautioned that constipation, a known side effect of these injections, can result in complications such as painful anal fissures and piles.
It has also been noted that bowel cancer can present similar symptoms, complicating early diagnosis.
The Doctor's Observations
Dr. Perry, a former NHS GP, stated that there has been a 41 percent increase in patients with haemorrhoids in the last six months alone. Many of these patients, both men and women, report using drugs like Mounjaro and Ozempic and experiencing significant bowel changes contributing to the problem.
Weight loss drugs are generally well-received; however, increased dosages can lead to piles. Also, many patients are going to the gym to combat muscle loss from the weight loss, but weight training may involve straining, which can worsen haemorrhoids.
He explained that GLP-1 medications can delay gastric emptying and slow the movement of food through the digestive tract, resulting in drier and harder stools. This, in turn, causes piles, small tears, and anal skin tags due to increased straining during bowel movements. Health tracking apps like Shotlee can help monitor changes in bowel habits and related symptoms.
Online forum users have also reported experiencing haemorrhoids while on these medications, even without a history of constipation.



