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Dear Dr. Roach: My father was diagnosed with protein S deficiency, but there isn鈥檛 much information on it. I鈥檓 unable to find a doctor who specializes in it or even knows about it.

Dear Dr. Roach: I am 79 years old, at a healthy weight, and I exercise often. Recently I had a blood test that showed several markers for lupus. The doctor wants to put me on hydroxychloroquine.

Dear Dr. Roach: After my doctor moved, my new doctor would not order me a colonoscopy because I had turned 90. Are all doctors like that? My family is loaded with cancer. My mom had two colon cancer surgeries and died at age 99.

Dear Dr. Roach: I have a question about omega-3 fatty acid intake, either through fish consumption or by dietary supplements such as fish oil. Apparently, many American diets are deficient in omega-3 fatty acids.

Dear Dr. Roach: My 76-year-old husband has severe muscle cramps. Originally it occurred in his legs, but now it also affects his hands and feet. He screams in pain. Recently he had an attack and asked me to get him some bananas.

Dear Dr. Roach: I have had plantar warts on both feet for decades. Unfortunately, they are on the pressure points of my feet (balls and heels). Nothing seems to eradicate the virus.

Dear Dr. Roach: When I was growing up, people would discuss their ulcers and complain of pain related to an ulcer. You never hear that word anymore. Why is that? Anon. Ulcers indeed have become less prevalent in the U.S.

Dear Dr. Roach: Could you say something about depression? What can it do to you in the long run if it isn鈥檛 treated? Anon. Depression is a huge topic.

Dear Dr. Roach: I am 79 years old. I have lupus, and currently my main focus is the lungs (COPD, asthma), which is under control.

Dear Dr. Roach: In October 2018 I was treated for syphilis, and had a VDRL titer of 1:128. A few months later, the titer was 1:8, but has stayed at 1:8 since then. Why hasn鈥檛 it gone down? Y.Y. VDRL and RPR are antibody tests for syphilis.