Psoriasis is more than just skin deep—which is why you need to see a healthcare professional if you suspect you have it. According to the National Psoriasis Foundation, up to 30 percent of people with psoriasis are at risk for developing psoriatic arthritis, a kind of inflammatory arthritis that could cause permanent joint damage if left untreated for too long. If you have psoriasis, be on the lookout for sore, stiff, and swollen joints, as this symptom could be caused by psoriatic arthritis.

If you have psoriasis or psoriatic arthritis, you’re at greater risk for certain diseases. Studies have suggested that people with psoriasis are more likely to develop cancer, cardiovascular diseases, depression and anxiety, metabolic syndrome, liver disease, and inflammatory bowel disease, among other conditions. The reason that psoriasis is linked to those diseases isn’t fully understood, although it’s thought to be because of the chronic inflammation and compromised immune system associated with autoimmune diseases such as psoriasis.

Living with psoriasis isn’t easy, but a combination of the right treatments and positive lifestyle changes can greatly improve symptoms. If you feel you have indications of any of the above conditions schedule a consultation with your physician. Psoriasis can be indicative of other serious diseases or conditions so regular medical screenings are particularly important for those living with psoriasis.