Does being naked break wudu?

Why nakedness isn't on the list

Wudu is broken by things the Quran and Sunnah name: something leaving the front or back passage, deep sleep, losing consciousness and, in some schools, touching certain things. Being uncovered isn't one of them. So if you made wudu, then got changed, stepped out of the shower or swapped clothes at the gym, your wudu is still valid. See What breaks wudu?

This is a common worry for new Muslims, because covering the body is a big part of Islamic modesty. Covering is about who sees you, not about whether you are in a state of purity.

The real question: touching your private parts

When you're undressed, it's easy to touch yourself while washing or drying, and this is where scholars differ:

• Shafi'i, Hanbali and Maliki: touching your private parts directly with the palm or inside of the fingers, without a barrier, breaks wudu. They rely on the hadith: "Whoever touches his private part, let him make wudu" (Sunan Abi Dawud 181).
• Hanafi: it does not break wudu. When asked about it, the Prophet ﷺ said it is "only a part of you" (Sunan Abi Dawud 182).

Touching through a towel or clothes does not break wudu in any of the four schools. If you follow the majority view and touched directly, simply redo your wudu.

Showering and wudu

Many people make wudu, then shower, or shower first and wonder if that counts. A ghusl done properly (with the intention) covers wudu for most scholars, as long as nothing broke it during the wash. If you want to be safe, make wudu at the start of the shower and avoid touching your private parts directly afterwards. See Does a shower count as wudu?

Modesty when you're alone

Islam allows nakedness where it's needed: bathing, changing, and between spouses. Outside that, it's good manners to stay reasonably covered even when alone, out of shyness before Allah. That's a matter of etiquette, though, not of wudu. Sleeping naked is a separate question too; see Is it haram to sleep naked?