Match your last photo
Kind Witness shows your last photo of that spot over the camera, so each new one lines up with it and changes are easier to see.
Lumps, wounds and rashes
Skin, lumps and wounds diary
Photograph a lump, wound or rash the same way each time, and note its size, colour and anything new. Then give your doctor a clear picture of how it's changed between appointments.
Coming soon to iPhone and Android.
See a doctor if a wound shows signs of infection, such as redness, swelling or heat around it, pus, pain that's getting worse or a fever, or if it isn't healing after about 5 days. See your doctor urgently if a lump under your skin is getting bigger, is painful, feels hard or has come back after it was removed, and see them if a mole looks different or a new mole appears after the age of 25. Call your local emergency number (000 in Australia) if you have a wound and feel faint, dizzy or confused, or have chest pain or are short of breath.
What to record for skin, lumps and wounds
Most lumps under the skin are harmless, but it's important to know your skin and what's normal for you, so you notice changes. The template asks about each check, so the details are written down while they're fresh. Fill in what you can and skip anything you don't know. You can always come back later.
- Exactly where it is, on a body map
- Its size in millimetres, if you measure it
- Its colour
- Whether it feels warm
- Whether it's tender
- Any discharge, such as pus
- Whether you have a fever
- Photos, taken the same way as last time
For checking it over time
Show the size
Put a coin or a ruler next to it in the photo, and type in its size if you measure it. Kind Witness keeps measurements as you enter them and never tells you what they mean.
See the changes side by side
Your report puts the photos in date order, with each size you entered, such as 18 mm to 24 mm since 1 October.
Note what was going on
A painful lump or swelling that comes up over a day or two may be from an injury or an infection. Tap anything that was going on. Over time, your report shows how often each one came up, as plain counts.
Questions about skin, lump and wound diaries
Does Kind Witness check my spots or moles?
No. Kind Witness is a diary. It records what you tell it and keeps your photos in order, but it never looks at a photo to judge a spot, a mole or a wound. Only your doctor can tell you what it means. Read our medical disclaimer
Can a diary help me notice changes?
Yes. It's worth checking your skin regularly for new spots and for changes to freckles or moles. Undress fully, use good light, and use a mirror for places that are hard to see, such as your back and scalp. Photos taken the same way each time make changes easier to compare.
How do I take a good photo?
Use good light, such as daylight from a window, and a plain background in one colour. Take one photo from further back, so your doctor can see where it is on your body, and a close-up that shows the detail. A coin or a ruler next to it shows its size. Ask your doctor how often to take photos.
Can I track a wound while it heals?
Yes. Photograph it each time you check it, and note any redness, swelling, heat, pus or pain. A wound that takes longer than 4 weeks to heal is called a chronic wound, and you should see a doctor about it.
I have diabetes. Can I keep an eye on wounds on my feet?
Yes. Wounds are more common in people with diabetes, and a wound on your feet can go unnoticed if you've lost feeling there. Wounds may also heal more slowly. A photo each time you check shows whether a wound is healing. Ask your doctor or care team how to look after a wound.
Can I use it for eczema, psoriasis or hives?
Yes. Choose the eczema, psoriasis and hives template when you set up. It asks about itch, the area affected, any sleep you lost and the creams you used, with the same photo guide. If you're recording a reaction, such as hives after something you ate or a sting, the allergies template asks what you were exposed to. Allergy and reaction diary
Are my photos private?
Yes. Photos you take in Kind Witness go straight into the app, never your phone's photo gallery, and they're stored and encrypted on your phone with the rest of your diary. Nothing leaves it unless you send it. How we protect your diary
Is there a paper version?
Yes. The free printable symptom diary asks the same basic questions as the app, so you can fill it in by hand. Printable diaries
Written by Kind Witness · Sources checked 31 October 2026
Sources
- healthdirect. Wounds, cuts and grazes. December 2025.
- Cancer Council Australia. Check for signs of skin cancer.
- nidirect (Northern Ireland Government). Lumps and swellings. 19 December 2024.
- American Academy of Dermatology. How to take pictures of your skin for your dermatologist. 20 July 2023.
This page is general information, not medical advice. If something is new, severe or worrying you, contact your doctor. In an emergency, call your local emergency number (000 in Australia). Medical disclaimer